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#1
10-24-2025, 08:06 PM
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Who Can Get Me The Highest Edelbrocks Head Flow
Looking for some feedback on my Wide Port Edelbrock heads CNC ported by a reputable Pontiac shop. I know flow numbers aren't the only indicator of performance but that aside, I'm wondering if these can be improved upon by someone or are they pretty much as good as they can 'reasonably' get? They have 2.25" intake valves and 1.74" exhaust valves and the flow #s are as follows int/exh cfm at 28":
.200: 148/131 .300: 216/172 .400* 275/204 .500 326/227 .600 349/241 .700 371/251 I also have a port matched victor 4500 efi with plenum work I paid alot for and the plenum work looks like they put 1 hour into it so looking to match that to overall head performance. Cam has gross lift at .693" as it does get driven on the street.
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1969 Firebird 525 IA2 Aluminum Block Edelbrock Wideport heads 200 4r trans 3.89 9" |
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