[QUOTE=Jim Hanig;531808]
Quote:
Originally Posted by HP HUNTER
"very good ones make 600 range "
I would open this question up to the whole forum, if you have a A/SA 1969 Nova with a 375 HP 396 stick and it runs 135 MPH @ 3470 in a 29.00 baro, How much HP does this take?
With 245 CFM @ 28 inches it would have to make in the 530s for HP corrected STP. My Buick flowed 213 CFM @ peak lift and made 474 HP, theres no way that BBC intake manifold is worse than the Buicks.[/QUOTE What buick are you talking about? The 455 is way better than the 365/454 intake.
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1971 Buick 455 403 intake, I've done extensive flow testing and dyno testing with this intake bolted to my 661/149 455 heads. I've also tested the 1970 low rise BBC intake on the dyno and flow bench, this intake unmodified made 532 HP on my 9.3 compression 467 with a 228 @ .050 cam with ported peanut port heads. I feel the the BBC intake has more cross section which shows by the feet per second.