Here’s my side of the argument……..
I wasn’t looking for a “stock” engine……. So I hotrodded one a bit.
This is the same short block I bracket raced for 3 years that made over 480hp.
I replaced the unported 906’s with some bowl blended later model castings(1-346, 1-452…… I used up some orphans)that flowed like mid-250’s, milled to achieve 9.8cr with a .040 gasket.
Same RPM intake as before, Holley 750(4779) carb, new smaller exhaust manifold friendly SFT cam, and running on pump 93 with exhaust manifolds that had a few feet of 2.5” pipe on them, no mufflers.
This is the only sheet I have handy, and this test was with a 14x4 air filter installed.
Afterward, I felt the cam was a bit too long, and too wide…… which is partially why the tq peaks as high up as it did.
Idled like a pussy cat though.
Cranking pressure was only 155psi(same as what my old 448 was that ran 10’s).
The 480hp configuration of this engine cranked almost 200.
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