[a1953mdl]

The deck height is whats killing it. We haven't remeasured it, but it was .040, with a gasket thickness of .042. The bore is 3.915 and the stroke is 3" even. The other problem is not being able to find gaskets the have a smaller cylinder bore size than 4.1. Needs about 3.95 to 4" even. We did find steel gaskets with a thickness of .016, that would help. Does anyone know the bore size on the gaskets for a 305, they should be smaller, maybe not too small.
When he first decided to go with these heads, he thought the CR might be up around 11. but it isn't turning out that way.
Matt worked on the heads to improve flame travel and decrease detonation points. That way he could run more compression with reg pump gas. He would like it in the low 10 to one area.
He's put quiet a bit of time into modding the heads and doing research for this. It's still experimental, but maybe it will work. Few things that are different are easy.
Lee