Re: How do you pick the correct flow rate for a intake manifold?
^ you know, I've not seen that many intake comparison on a flow bench or even on a given set of heads with different intakes. I recall a Vic JR 4150 flange vs a dual plane air gap bolted on to the flow bench on a 315 (maybe it was 305) head. The diff between the two were about 15-20cfm. The single was outflowing it, but, on the motor the intakes made close hp (496 I think it was). Of course the single plane made more on top, but on average, they were pretty darn close...if I recall correctly.
69 Camaro SS, Black on black
489 ci 10:1
1968 corvette convertible 327/4 speed
2011 ZR1 Arctic White w/black headlights