BORE SHROUDING TEST: 4.03" vs 3.91" Edelbrock RPM Heads Really Fit a 318? Project Mission Impossible

Just a test with numbers to prove what we've known all along. :BangHead: :rofl:
I'm glad Andy is doing these tests, and there is certainly info there, but then one would ask "what do I do about it?" I mean, notch the cylinders is minimal. Going .060 over would be the best remedy, but adding bore size is always a good thing regardless if it's 1.88 or 2.02.