Slant 6 power?

Bill Dedman said

Have you ever seen the exhaust port on a 327 small block Chevy head?

I'd be surprised if it's ANY bigger than a /6 exhaust port.

I don't think it is. The intake, yes, but they had 2.02" valves to feed...

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exactly.... if you cant get it in there dont worry about getting it out!

by making to big of an exhaust valve you can slow velocity and over scavenge causing and over rich condition that you could not tune out of it at certain rpms...