Better check out your dyno if you got those small port, small log manifold to flow up that close to the early 340 manifolds because they sure don't show it in the real world. Another reason I don't put much faith in dyno testing.



Hey - it ain't my dyno, and I've posted a number of times that I don't have much faith in this particular test, as I've said just about every time it has been cited (and it's come up again and again).

Just pointing out factors to consider even if you accept the validity of one test of one motor.