Quote:
Originally Posted by Schrade
Q's:
Is there a flow rating for stock?
How 'bout for 63mm?
And with 63mm, where's the bottleneck inflow THEN, with stock non-ported plenum / IH's?
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a 427 at 7000 will pull 1" HG vacuum in the manifold with twin 63.5mm blades, and an oversize primary throttle plate. That'll cost a few hp. Smaller motors will be fine with 63mm. Not sure what vacuum a ported 350 would pull with the stock TB, maybe less than an inch?