How much cylinder head flow needed to feed 535CI?
This is going to be very vague I know but approximately/roughly how much cylinder CFM flow would be required to feed a naturally aspirated 535 CI Pontiac bracket engine? I'm pretty confident my 290cfm heads will fall well short.
Assumed Variables: my 78 Trans Am below, Northwind 4500 intake, necessary size Dominator, appropriate size solid roller cam. E-85 fuel
Playing on the KRE website, it looks like I can have my KRE 290 D-port heads and Northwind opened up to 340cfm. Of course I'd probably have to find some round port adapters so I could run bigger round port headers.
Thanks,
John
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 Johnny US Army Retired
1978 T/A 463 Pontiac, KRE 74cc 300CFM D-ports, Howard's custom SFT, Nash Intake,QFT 950 E85 carb, TCI TH-350, 4200 converter 3.73 12 bolt [email protected]
1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car.
1972 LeMans 350 Pontiac H/S Drags project
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