My biggest gripe is if you know so much start a post and “teach us”. But no they don’t do that. They would rather come on someone’s post that is trying to teach a few findings and spin their story. I don’t know if this guy runs 11’s or really knows something and runs 8’s. If you are talking about an Indy head or some other head then in your post I would know this. Every small block head I test is on a 4.015 cylinder size flow adapter and sealed with a 4.180 (1008 felpro gasket). So if the flowbench findings isn’t enough you know what my car runs. These heads have been on 3 (4.030) and 1 (4.040) engines that have run 9.30’s-10.30’s on a 2850 car and 3200 pound car. So flowbench numbers backed up by track numbers. 4.180 chamber on these bores. When the valves clears the deck surface it has 4.030 inches of area to flow into. A properly ported head has air directed towards the center of the cylinder NOT the cylinder wall. This takes effort and is why we get rich porting heads. If the chamber is crowded in on the valve, especially with the sucky azz small block chamber if you don’t give it room suffers from .100-1.00 every time the valve opens and closes. After todays flow numbers I’m done teaching for awhile because I’m tired of explaining things over and over. Step up guys, teach us.
