Essentially, on your engine, it will help solve the problem you just mentioned. Make it look about right.

On some of the competition type engines you have mentioned, they are of a very precise shape, length, and volume. They will have a tuned effect on the intake charge at wide open throttle.

John, before you go to all this trouble, try a smaller prop on the engine and let it turn up a little more rpm? It may swallow most of this without any more bother?

enjoy,

Jim