To find out exactly how much more, we went to noted Ford engine specialists Powered By Ford in Orlando to set up a small-block head comparison test on PBF's in-house SuperFlow flow bench. How are heads that have a good and a bad port handled? We apologize for this inconvenience and encourage you to visit. No swirl numbers available. Heads Iron, Jeep 4.0 Bill Jones Bowl Blend, Light Port Cleanup Iron, Jeep 4.0 Bill Jones Above plus VJ Back Cut and Blend Iron, Chrysler Neon SOHC '94-00 CNC M2 Race Systems, Chrysler Neon SRT-4 JM Cylinder Heads SF600 Alum, Chrysler Neon SRT-4 Ported Stage 2 JM Cylinder Heads SF600 Alum, Chrysler '96-02 Viper CNC M2 Race Systems, Chrysler '08 Viper Greg Good Bowls and Chamber Ported, Chrysler Viper Gen I ('92-'96) JM Cylinder Heads SF600, Chrysler Viper Gen I ('92-'96) Ported JM Cylinder Heads Stage 3 SF600, Chrysler Viper Gen II ('96-'02) JM Cylinder Heads SF600, Chrysler Viper Gen II ('96-'02) Ported JM Cylinder Heads Stage 3 SF600, Chrysler Viper Gen II Ported Louthan Stage 3, Chrysler Viper Gen III ('03-)JM Cylinder Heads SF600, Chrysler Viper Gen III ('03-)Ported JM Cylinder Heads Stage 3 SF600, Chrysler Viper Gen III Ported Port Pros Stage 3, Striker Street Gen II Gen III JM Cylinder Heads Stage 3, Chrysler 915J Ported I-Nailhead E-Tulip SF600 Iron, Chrysler 974 Cleaned and milled IQ52 Iron, Chrysler 974 Cleaned and milled IQ52 11/32 SS Iron, Chrysler 308 360 - Hughes Stage I Ported Iron, Chrysler 308 360 - Hughes Stage II Ported Iron, Chrysler MP 5249574 / 579 Bowl Blend - Intake Gasket Matched BJR Racing, Chrysler Truck Magnum Ported Shady Dell Speed Shop Iron, Chrysler 302 318 Swirl Ported Shady Dell Speed Shop, Chrysler 302 Flowtech - Steven Magnotti SF110 Alum, Chrysler 596 Ported / Stealth Hughes Iron, Chrysler Magnum 360 Ported ET Performance, Chrysler Magnum R/T Shady Dell Speed Shop, Chrysler Magnum R/T Ported Shady Dell Speed Shop, Chrysler Commando Ported Shady Dell Speed Shop, Chrysler W2 P5249769 Ported Bullet Cylinder Heads Iron, Chrysler W2 810 Flowtech - Steven Magnotti SF110 Alum, Chrysler W2 810 Fully Ported Flowtech - Steven Magnotti SF110 Alum, Chrysler W5 '96 Flowtech - Steven Magnotti SF110 Alum, Chrysler W5 Ported Shady Dell Speed Shop Alum, Chrysler W5 Max Ported Shady Dell Speed Shop Alum, Chrysler W7 Ported Shady Dell Speed Shop Alum, Chrysler W9 261 Ported Chapman 360 Sprint, Brodix B1 BA '94 Flowtech - Steven Magnotti Intake 30 Deg Back Cut SF110 Alum, Brodix B1 BA '94 Flowtech - Steven Magnotti Ported Exhaust plus Seats Recut SF110 Alum, Brodix B1 BA '94 Flowtech - Steven Magnotti Ported Intake - Exhaust plus Seats Recut SF110 Alum, Brodix B1 BA Ported Shady Dell Speed Shop Alum, Brodix B1 BA MC Shady Dell Speed Shop Alum, Brodix B1 BA MC Ported Shady Dell Speed Shop Alum, Brodix B1 Ported Bullet Cylinder Heads Alum, Edelbrock Performer RPM (340) 6077 NPS Out of Box Alum, Edelbrock Performer Intake Gasket Matched Exhaust Ported BJR Racing Alum, Edelbrock Performer RPM Ported Anderson Port Development SF1020 Alum, Edelbrock Performer RPM Magnum 61779 SF1020 Alum, Edelbrock Performer RPM Magnum Dr Js Performance Alum, Edelbrock Performer RPM Magnum Ported Dr Js Performance Alum, Edelbrock Magnum Shady Dell Speed Shop Alum, Edelbrock Magnum Stage 3 Ported Shady Dell Speed Shop Alum, Edelbrock Stage 4 Ported Shady Dell Speed Shop Alum, EngineQuest CH318A 5.2l/5.9l Magnun Ported Iron, EngineQuest CH318B Magnun Ported SKMFX Engines Iron, Indy 360-1 Out of Box Shady Dell Speed Shop, Indy 360-1 245 Out of Box Shady Dell Speed Shop, Indy 360-1 245 Ported Shady Dell Speed Shop, Indy 360-2 Full Porting - Bowls Blended Exhaust Short Turn Brian, Indy 360-2 Ported Shady Dell Speed Shop Oval, Chrysler 250 Full Race Ported Brian Stroud Iron, Chrysler Max Wedge Bowl Blend Gasket Match BJR Racing Iron, Chrysler 906 Stock Eliminator Modern Cylinder Head Iron, Chrysler 906 Ported Dr Js Performance Iron, Chrysler 906 Mildly Ported Bill Jones Iron, Chrysler Stage VI Minor Pocket Porting Gasket Matching Brian Stroud Alum, Chrysler Stage VI Ported Porter Racing Heads Alum, Chrysler Stage VI (P4876383) Ported Chapman, Chrysler Stage VI (P4876383) Ported Chapman Out of Box Porter Racing Heads, Chrysler Stage VI (P4876386) Ported Chapman Max Wedge Alum, Chrysler Stage VI BJR Racing Out of Box Alum, Chrysler Stage VI Intake Bowl BJR Racing Alum, Chrysler Stage VI Ported BJR Racing Max Wedge Alum, Brodix B1 MoPar Ported ET Performance Alum, Brodix B1 Ported Modern Cylinder Head Alum, Brodix B1 MC Ported Modern Cylinder Head Alum, Edelbrock Performer RPM 60929, 60189 SF1020 Alum, Edelbrock Performer RPM 60929 Hughes Out of Box Alum, Edelbrock Performer RPM 60929 Ported Hughes Alum, Edelbrock Performer RPM IQ52 Out of Box Alum, Edelbrock Performer RPM VJ Minor Bowl Port Clean Up Alum, Edelbrock Performer RPM CNC Chad Speier Alum, Edelbrock Performer RPM Ported MRL Performance, Edelbrock RPM Ported Hughes Stage 3 SF600 Alum, Edelbrock Ported Modern Cylinder Head Alum, Edelbrock Victor 77929 CNC Chad Speier V3.3 I-45 E-45 Alum, Edelbrock Victor Flowtech - Steven Magnotti Intake 3/4" Longer than stock SF110 Alum, Edelbrock Victor Ported Modern Cylinder Head Alum, Edelbrock Victor Max Wedge 77949 Intake Port Raised .65 Exhaust Port Raised .25 SF1020 Alum, Edelbrock Victor Max Wedge 77949 NPS Alum, Edelbrock Victor Max Wedge Ported Brian Alum, Edelbrock Victor Max Wedge Ported Speed-O-Motive Alum, Edelbrock Victor Max Wedge Ported Hughes Stage 3 Alum, Edelbrock Victor Max Wedge Ported Hughes Alum, Edelbrock Victor Max Wedge Ported Scott Brown Alum, 440source Stealth Ported Modern Cylinder Head Alum, 440source Stealth Ported Modern Cylinder Head 440source Alum, Indy 440-SR Mild Bowl Port Compu-Flow SF1020, Indy 440-1 Out of Box 90's BJR Racing Alum, Indy 440-1 Ported Modern Cylinder Heads Alum, Indy 440-1 Ported Modern Cylinder Heads Flowed Porter Racing Heads Alum, Indy 572-13 Ported Modern Cylinder Head Alum, Pro Comp Ported Modern Cylinder Heads Alum, Chrysler '54 331 Ported Smithberg Racing Iron, Hot Heads Early Hemi Ported Smithberg Racing Alum, Chrysler Alum Hemi Ported Modern Cylinder Head, Chrysler BJR Racing Old TF 11/32 stem Iron, AJPE 5.3 BS PRO MOD Hemi Darin Morgan Alum, Canfield Hemi Ported Modern Cylinder Heads Alum, Edelbrock Hemi Ported Modern Cylinder Heads Alum, Indy 426-1 Legends Meaux Racing redo SF600, Stage V Hemi Replacement Ported Modern Cylinder Heads Alum, Stage V Hemi Replacement Ported For Hemis Only SF600 Alum, Stage V Hemi Ported For Hemis Only Raised Exhaust Port 21.5 Deg Angle SF600 Alum, Stage V Hemi Millenium Ported Speed-O-Motive Alum, Stage V Hemi Millenium Ported Modern Cylinder Heads Alum, Stage V Hemi Millenium Ported For Hemis Only Port SF600 Alum, Stage V Hemi M2000 Ported For Hemis Only Port SF600 Standard Alum, Stage V Hemi M2000 Ported For Hemis Only Port SF600 Custom Alum, 12V Diesel Ported Stage 1 Piers Diesel Research, 12V Diesel Ported Stage 2 Piers Diesel Research, 12V Diesel Ported Stage 3 Piers Diesel Research, 24V Diesel Ported Stage 1 Piers Diesel Research, 24V Diesel Ported Stage 2 Piers Diesel Research, 250 GT 2v Late '62 6 Port CAROBU Engineering LLC, 355 V8 Factory Modified Sabre Heads SF110, 365 GTB/4 CAROBU Engineering LLC Ported Intake, Ford Y ECZ-G Ported Ford-Y-Block Street Iron, Ford Y ECZ-G Ported Ford-Y-Block Performance Iron, Ford Y '57 G Ported Joe Craine Street / Strip Iron, Lincoln Y ECU-E Ported R & R Performance Iron, Lincoln Y ECU-E Ported Abbot Stage 4 Iron, Lincoln Y ECU-E Ported Abbot Stage 5 Iron, Lincoln 430 B9VE Street / Strip Port Les Schmader Iron, Lincoln 462 '67 C6VE Ported Joe Craine Iron, Ford 2.0 (SOHC English) Pinto Ported Kelford Cams, Ford '06 2.0-2.3 Duratec Sabre Heads SF110, Ford '06 2.0-2.3 Duratec Ported Sabre Heads SF110, Ford '95 16v RS2000 Ported Sabre Heads SF110, Ford 4.0 Ported Super Six Motorsports Stage 2, Ford 4.0 Ported Super Six Motorsports Stage 2+, Ford 4.0 Ported Super Six Motorsports Stage 3, Ford I-6 OZ 250 Ported Classic Inlines Iron, Ford Cosworth YB Ported MORGO Systems for std cams, Ford Cosworth YB Ported MORGO Systems for 11 mm lift cams, Ford 1.6 OHC Pinto Ported /Andre' Norrback Epoxy, Ford OHC Pinto Ported /Andre' Norrback Rally, Ford 2.0 OHC Pinto Ported /Andre' Norrback Rally, Ford Super Six Motorsports With Stock Intake manifold, Ford Ported Super Six Motorsports With Ported Intake manifold, Ford 3.8 SC / Single Port Ported Coy Miller, Ford 3.8 SC Ported Super Six Motorsports Stage 2, Ford 3.8 SC Ported Super Six Motorsports Stage 2+, Ford 3.8 SC Ported Super Six Motorsports Stage 3 88-95, Ford 3.8 SC Ported Redline Performance Mustangs 88-95, Ford 3.8 SC Ported Super Six Motorsports Stage 3 96-98, Ford 3.8 SC Ported Redline Performance Mustangs 96-98, Ford 3.8/4.2 Split Port Redline Performance Mustangs, Ford 3.8/4.2 Split Port Ported Redline Performance Mustangs, Ford 3.8/4.2 Ported Super Six Motorsports Stage 2, Ford 3.8/4.2 Ported Super Six Motorsports Stage 2+, Ford 3.8/4.2 Ported Super Six Motorsports Stage 3, Ford 351 C4V D0AE Closed Chamber Mark Workman Iron, Ford 4V Closed Chamber Dr Js Performance Iron, Ford 4V Closed Chamber Ported Dr Js Performance Iron, Ford 4V Closed Chamber Ported BH Performance Iron, Ford 4V Closed Chamber Ported Bullet Cylinder Heads Intake Tongues are fitted Iron, Ford Aussie 2V Ported PowerHeads SF600 Iron, Ford C302B Stiegemeyer Racing SF600 Ported, Ford C302B SVO Ported Bullet Cylinder Heads Alum, Blue Thunder Custom Performance Stage IV Ported Hi-Ex Alum, Blue Thunder Ported Chad Speier v3.10 Alum, Edelbrock Performer RPM 61629 SF1020 Alum, Pro Comp Ported Dr Js Performance I-52 Alum, Pro Comp Ported Chad Speier V2.90 I-45 E-45 Alum, '96-'98 Non P.I. Ford’s part number convention generally follows the format of a four-digit casting code, followed by a four-digit basic part number, which will be “6090” for a cylinder head… All of this combined to dramatically increase airflow over the stock heads, with peak flow checking in at 277 cfm vs just 157 cfm for the stock heads. The as delivered valve job is a 2 angle exhaust and 3 angle intake with 2.08"/1.65" valve sizes. Performance Alum, 4.6L 4V '99-'01 Ported Stage 1 C.A.P.A. It's hard to believe today that just a little more than 10 years ago, small-block Ford engine builders went to great lengths to locate suitable cylinder heads for performance applications. I believe that these heads have the best inlet flow potential and best initial chamber shape. Click part … (Image/Richard Holdener) The 5.0L then received this complete Trick Flow Specialties Top-End kit, including heads, cam, intake, and rockers. Stock flow numbers routinely vary from head to head and port to port so it is inevitable that the numbers will vary a little. Heads from 1966-on, including the later truck heads, have the exhaust port in a lowered location while the bolts remained in the same spot. Ported C.A.P.A. These heads, as cast, make an excellent street head, and are the heads we Ported Chad Speier I-50 E-50 Alum, Edelbrock/ Chapman Victor 18 Deg 61089 Alum, Edelbrock/ Chapman Victor 18 Deg 61109 Alum, Edelbrock 61119 Victor 15 Deg. I think that was at .600 lift. EBV-C 1956 and later location. Sample DFW File for Performance Trends Engine Analyzer v3.9, RSX Ported CHR Motorsports LLC Home Made Bench, 155 TS Ported Andreas Engstr�m welded and epoxi, AMC 291-C '70 390 '71 401 74Bubblefender Iron, Edelbrock Performer 60119, 60139 SF1020 Alum, Edelbrock Performer 401 Ported Meaux Racing SF600 Alum, Indy 401-SR Ported Alfano Perfermance Alum, Indy 401-SR Ported Garland Perfermance Alum, Mini A Series Ported Sabre Heads Offset Guides, Mini Cooper S CHR Motorsports LLC Home Made Bench, Mini Cooper S Ported CHR Motorsports LLC Home Made Bench, Mini Cooper S '01-06 CNC M2 Race Systems 1mmOS Valves, Buick 300 V8 Ported Peak Performance Alum, Buick 340 1376330 VJ Bowls Port Cleanup NPS Iron, Buick Nailhead '57 889 Mild Ported RnD Engineering I-30 E-30 Back Cut Iron, Buick Nailhead '66 401 Stock Babeola Iron, Buick 455 '73 860 Ported Smithberg Racing Iron, Buick 430 (Stage 1 Valves) Charlie Evans Iron, Buick Converted to Stage 1 Valves TA Iron, Edelbrock Performer RPM 60049 SF1020 Alum, Edelbrock Performer RPM 60049 George Alum, Edelbrock Performer RPM Ported SF600 Alum, TA Performance Street Eliminator Stage 1 Ported, TA Performance Street Eliminator Stage 1 Ported Gessler, TA Performance Street Eliminator Stage 2 Kerry SF600, TA Performance Street Eliminator Stage 2 Ported Kerry SF600, TA Performance Stage 1 Out of Box Jim Weise Alum, TA Performance Stage 1 Ported Jim Weise Alum, TA Performance Stage 3 Alum Ported Bruce Kent, '53 331 ci Norm Schenck / Competition Fuel Systems, '53 331 ci Pocket Ported Norm Schenck / Competition Fuel Systems, Chevy Bow Tie 034 Meaux Racing Out of Box SF600 Iron, Chevy Bow Tie 034 Ported Meaux Racing SF600 Iron, Chevy Bow Tie 034 Ported Meaux Racing Larger Bore SF600 Iron, Chevy Bow Tie Tri-Mark Ported Stealth Iron, Chevy Bow Tie Tri-Mark Ported Super Stealth Iron, Chevy 291 3-angle VJ Meaux Racing SF600 Iron, Chevy 291 Bowl Ported exhaust Cleanup trmnatr Iron, Chevy 292 Ported Rons Porting Service SF600 Iron, Chevy 292 Ported MadCap Racing Heads SF600 Iron, Chevy 461 Ported Creative Flow Management Iron, Chevy 461X 3-angle VJ Meaux Racing SF600 Iron, Chevy 461X C/ED Ported Meaux Racing SF600 Iron, Chevy 487X Chamber Bowl work VJ Brian W SF600 Iron, Chevy 487X Chamber Bowl some Port work VJ Meaux Racing SF600 Iron, Chevy 492 Meaux Racing Out of Box SF600 Iron, Chevy Fast Burn 7712 Out of Box Meaux Racing SF600 Alum, Chevy Fast Burn Off ZZ383 Out of Box Smithberg Racing Alum, Chevy Fast Burn Off ZZ383 VJ 2.02 Int Smithberg Racing Alum, Chevy Fast Burn Off ZZ383 Ported Smithberg Racing Alum, Chevy L98 113 Ported Precision Motorsports Alum, Chevy Vortec 906 Meaux Racing 3 Angle VJ and clean up SF600 Iron, Chevy Vortec 906 Ported Meaux Racing Level 2 SF600 Iron, Chevy Vortec 906 Ported Smithberg Racing Street Bowl SSR work Iron, Chevy Vortec L31 Tri-Mark Ported Stealth Iron, Chevy Vortec L31 Tri-Mark Ported Super Stealth Iron, Chevy Vortec / Bow Tie 421 Small Port Iron, Chevy Vortec / Bow Tie 431 Large Port Iron, Chevy Vortec / Bow Tie Small Port Bob Iron, Chevy Vortec / Bow Tie Large Port Bob Iron, Chevy 364 18 Deg 248 RCR Super Truck Alum, Chevy 580 18 Deg 245 RCR Super Truck Alum, Chevy 364 / 580 18 Deg 236 CNC Chapman Alum, Chevy 364 / 580 18 Deg 246 CNC Chapman Alum, Chevy 364 / 580 18 Deg 256 CNC Chapman Alum, Chevy 364 / 580 18 Deg 266 CNC Chapman Alum, Chevy 364 / 580 18 Deg 249 Ported Hutter Alum, Chevy 18 Deg 235 CNC M2 Race Systems Alum, Chevy 18 Deg 255 CNC M2 Race Systems Alum, Chevy 18 Deg 270 CNC M2 Race Systems Alum, Chevy 615 15 Deg CNC Rons Porting Service Alum, Chevy Canted Valve Ported ET Performance Alum, Chevy Canted Valve Ported Meaux Racing SF600 Alum, Chevy Canted Valve 10 Deg Pro Stock Truck '01 - Darin Morgan Alum, Chevy / GM SB2.2 011 278 Ported GPTech Busch Alum, Chevy / GM SB2.2 011 282 Ported GPTech Alum, Chevy / GM SB2.2 011 275 Ported Neal Alum, Chevy / GM SB2.2 011 282 Ported Neal Alum, Chevy / GM SB2.2 011 287 Ported Neal Alum, Chevy / GM SB2.2 Ported ET Performance Alum, Chevy / GM SB2.2 Drag MBE Port 3 I-55 E-55 SF600 Alum, Chevy / GM SB2.2 Hendricks - Meaux Racing SF600 Alum, Chevy / GM SB2.2 Hendricks - Darin Morgan SF600 Alum, Chevy / GM SB2.2 DEI - Darin Morgan SF600 Alum, Chevy / GM SB2.2 NASCAR '02 - Darin Morgan Alum, Chevy / GM SB2.2 NASCAR '05 - Darin Morgan Alum, Chevy / GM SB2.2 Comp Elim - Darin Morgan Alum, AFR 195 OLD Out of Box Weingartner Racing Alum, AFR 195 Eliminator Comp Out of Box Hemphill Racing SF600 Alum, AFR 210 Eliminator #1103 Chad Speier Alum, AFR 210 Eliminator Dr Js Performance Alum, AFR 210 Eliminator CNC Dr Js Performance Alum, AFR 210 Race Old Ported Meaux Racing Alum, AFR 210 CNC Out of Box Weingartner Racing Alum, AFR 220 Eliminator Comp Out of Box Meaux Racing SF600 Alum, AFR 227 Eliminator CNC Out of Box Weingartner Racing Alum, AFR 235 Eliminator CNC Out of Box Weingartner Racing Alum, All PRO II-13 Ported Jones Engineering Alum, All PRO RE-13 Ported Jones Engineering Alum, All PRO RE-18 Ported Rons Porting Servive Alum, All PRO 13 Deg CNC Jones Engineering Alum, All PRO 13.5 Deg CNC Jones Engineering 75/135 Alum, All PRO 13.5 Deg CNC Jones Engineering 95/150 Alum, All PRO 272 22 Deg Ported Jones Engineering Alum, All PRO 23 Deg Ported Jones Engineering Alum, All PRO 23 Deg Ported Kelford Cams 360 SprintCar Alum, All PRO 23 Deg Ported Rons Porting Service Alum, All PRO 23 Deg Rolled to 16.8 Deg Ported BES Alum, BMF 18 Deg 268 CNC Out of Box Meaux Racing SF600 Alum, BMF SBX 4.5 Bore CNC Darin Morgan SF600 Alum, Brodix 305 Sprint Race Saver Ported Smithberg Racing, Brodix BP HH RO 225 23 Deg 40/60 I-52 E-55 Alum, Brodix BP HH RO 234 23 Deg 40/60 I-52 E-55 Alum, Brodix HH 234 Out of Box Weingartner Racing Alum, Brodix -8 STD 23 Deg Ported ET Performance Alum, Brodix -10 WP SP RI 23 Deg Jones Engineering 40/60 I-45 E-45 Alum, Brodix -11 SP X ASCS Chad Speier Worked Alum, Brodix -12 WP SP RI - 247 15 Deg CNC 40/60 Alum, Brodix -12 WP SP RI - 262 15 Deg CNC 40/60 Alum, Brodix -12 WP SP RI MC 15 Deg CNC 58/107 Alum, Brodix -12 STS SP WB MC 15 Deg CNC 70/125 Alum, Brodix -12 RVR 15 Deg Jones Engineering70/125 Alum, Brodix -12X12 WP SP B - 275 12 Deg CNC Alum, Brodix -12X12 WP SP B - 286 12 Deg CNC Alum, Brodix -12X12 WP SP B - 296 12 Deg CNC Alum, Brodix -12X12 WP SP B - 299 12 Deg CNC Alum, Brodix -12X12 15 Deg 272 CNC Chapman Alum, Brodix -12X12 15 Deg 292 CNC Chapman Alum, Brodix 13 Deg LMD CNC Rons Porting Service I-50 E-45 85/134 Alum, Brodix 13 Deg LMD Jones Engineering I-45 E-45 85/134 Alum, Brodix -15 WP SP / STD 15 Deg Ported 58/107 Alum, Brodix 15 Deg CNC Jones Engineering I-45 E-45 Alum, Brodix 15 Deg CNC Rons Porting Service Alum, Brodix 16 Deg CNC Jones Engineering I-45 E-45 Alum, Brodix -18 STD X 18 Deg M2 Race Systems CNC 40/60 Alum, Brodix -18 SP X 18 Deg CNC M2 Race Systems 40/60 Alum, Brodix -18 SP X 18 Deg Ported Jason 40/60 Alum, Brodix -18 SP 18 Deg 262 CNC Chapman 40/60 Alum, Brodix -18 WP SP C 18 Deg CNC 58/107 Alum, Brodix -18 WP SP C AP 18 Deg CNC 58/107 Alum, Brodix 18 Deg Busch Ported ET Performance Alum, Brodix 18 Deg CNC Rons Porting Service 262 Alum, Brodix 18 Deg CNC Rons Porting Service 278 Alum, Brodix 18 Deg Ported Meaux Racing SF600 Alum, Brodix Track 1 227 CNC Out of Box Weingartner Racing, Brodix Track 1 23 Deg CNC M2 Race Systems Alum, Brodix Track 1 23 Deg Ported BHPerformace Alum, Brodix Track 1X 23 Deg CNC 40/60 Rons Porting Service Alum, Brodix Track 1 40/60 Valve Spacing 23 Deg Alum, Brodix STS Track 1 23 Deg CNC I-50 E-45 40/60 Alum, Brodix IK 180 23 Deg Ported PHPerformance Alum, Brodix IK 200 23 Deg Out of Box Weingartner Racing Alum, Brodix FF 13 Deg Ported Jones Engineering 88/184 I-45 E-45 Alum, Brodix FF 10 Deg Ported Jones Engineering 110/184 Alum, Brodix BD 1010 12 / 13.5 Deg CNC 58/125 Alum, Brodix BD 1010 12 Deg CNC Jones Engineering 95/150 Alum, Brodix BD 2000 12 / 13.5 Deg CNC 85/125 Alum, Brodix BD 2000 CNC Out of Box - Darin Morgan SF600 85/125 Alum, Brodix BD 2300 13.5 Deg CNC Jones Engineering 95/150 Alum, Brodix BD 4510 12 Deg 4.5 BS CNC Jones Engineering 95/150 I-45 E-45 Alum, Brodix WP BD 4510 12 Deg 4.5 BS CNC 88/184 I-45 E-45 Alum, Brodix WP FF 13 Deg 4.5 BS CNC 88/184 Alum, Brodix DR 1213 12.5 / 13.5 Deg CNC Jones Engineering Alum, Brodix GB 2000 WP 286 13.5 Deg CNC 85/125 Alum, Brodix GB 2000 13.5 Deg Ported TEA 85/125 Alum, Brodix GB 2200 WP 282 13.5 Deg CNC 85/125 Alum, Brodix GB 2200 WP 282 + 30 13.5 Deg CNC 85/125 Alum, Brodix GB 2200 13.5 Deg 282 CNC Jones Engineering 85/125 Alum, Brodix GB 2200 13.5 Deg 291 CNC Jones Engineering 85/125 Alum, Brodix GB 2300 WP 309 13.5 Deg CNC 75/125 Alum, Brodix GB 2300 13.5 Deg CNC RFD 75/125 Alum, Brodix GB 2300 13.5 Deg CNC M2 Race Systems 75/125 Alum, Brodix GB 2300 13.5 Deg 309 CNC Jones Engineering 75/125 Alum, Brodix GB 2300 13.5 Deg 311 CNC Jones Engineering 75/125 Alum, Brodix GB 2300 13.5 Deg 311 CNC Jones Engineering 95/150 Alum, Brodix GB 2400 13.5 Deg 320 CNC Jones Engineering 95/150 Alum, Brodix GB 2400 WP 13.5 Deg CNC 75/150 Alum, Brodix GB 2500 13.5 Deg CNC MBE Dirt Alum, Brodix GB 2500 13.5 Deg CNC MBE I-55 E-55 SF600 Alum, Brodix GB 2500 12.5 / 13.5 Deg CNC RFD Alum, Brodix Canted Valve Ported Bullet Cylinder Heads Alum, Canfield 23-550-65 Alan / Burtonsville Performance Out of Box SF600 Alum, Canfield 23-550-65 Minor Pocket Porting Alan / Burtonsville Performance SF600 Alum, Canfield 220 Ported Smithberg Racing Alum, CGM Motorsports 200 23 Deg CNC SF1020 Alum, CGM Motorsports 210 23 Deg CNC SF1020 Alum, Dart Sportsman II 200 Ported Smithberg Racing Iron, Dart 180 Iron Eagle Meaux Racing Out of Box, Dart 180 Iron Eagle Ported Tri-Mark Stealth, Dart 180 Iron Eagle Ported Modern Cylinder Head, Dart 200 Iron Eagle Ported Tri-Mark Stealth, Dart Iron Eagle 23 Deg CNC Rons Porting Service 220 Alum, Dart Iron Eagle 23 Deg CNC Rons Porting Service 228 Alum, Dart Iron Eagle 23 Deg CNC Rons Porting Service 238 Alum, Dart Iron Eagle 23 Deg CNC Rons Porting Service 248 Alum, Dart 230 Iron Eagle Out of Box Steve SF600, Dart 200 Iron Eagle Platinum CNC M2 Race Systems, Dart 200 Iron Eagle Platinum Ported Bullet Cylinder Heads, Dart 215 Iron Eagle Platinum Weingartner Racing Back Cut, Dart 215 Iron Eagle Platinum Competition Engines SF600, Dart 230 Iron Eagle Platinum Out of Box Weingartner Racing, Dart Iron Eagle Platinum Meaux Racing Out of Box SF600, Dart PRO1 200 Ported Bullet Cylinder Heads Alum, Dart PRO1 215 Out of Box Weingartner Racing, Dart PRO1 215 Ported Mike Stark Saenz 680 Alum, Dart PRO1 215 Meaux Racing Out of Box SF600 Alum, Dart PRO1 215 Ported Meaux Racing Level 2 SF600 Alum, Dart PRO1 215 Ported Meaux Racing SF600 Alum, Dart PRO1 215 Ported Meaux Racing Welded Pushrod Area SF600 Alum, Dart PRO1 230 Meaux Racing Out of Box SF600 Alum, Dart Platinum 23 Deg CNC Rons Porting Service 220 Alum, Dart Platinum 23 Deg CNC Rons Porting Service 238 Alum, Dart Platinum 23 Deg CNC Rons Porting Service 240 Alum, Dart 23 Deg 220 Full Port No back Cut SF600 Alum, Dart 18 Deg CNC Out of Box Weingartner Racing, Dart 18 Deg Full Port No Back Cut SF600 Alum, Dart 16 Deg Full Port Intake Back Cut 45/39/32 SF600 Alum, Dart 16 Deg Full Port Lrg No Back Cut SF600 Alum, Dart 16 Deg Ported Jones Engineering 58/107 Alum, Dart High Port 15 Deg - Darin Morgan SF600 Alum, Dart 12.5 Deg Ported Jones Engineering 36/102 I-45 E-45 Alum, Dart Little Chief 11 Deg 275 I-50 E-55 SF1020 Alum, Dart Little Chief 11 Deg 315 I-55 E-55 SF1020 Alum, Dart Little Chief 11 Deg Ported MBE I-55 E-55 SF600 Alum, Edelbrock E-Street 5073, 5089 SF1020 Alum, Edelbrock 60719 Performer RPM Straight Plug Alum, Edelbrock 60739 Performer RPM Angled Plug Alum, Edelbrock 60859, 60879 Performer Centerbolt SF1020 Alum, Edelbrock 60899, 60909, 60999 Performer RPM Alum, Edelbrock Performer RPM 60899, 60999 SF1020 Alum, Edelbrock Performer RPM 608979 SCCA SF1020 Alum, Edelbrock Performer RPM '86 earlier 60759 SF1020 Alum, Edelbrock E-210 Out of Box Weingartner Racing Alum, Edelbrock/ Chapman Victor 18 Deg 61069 Alum, Edelbrock 23 Deg.

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