I'm looking to reduce the squeeze in my 440/493 and I was thinking of using a gasket THICKER than the Fel Pro .039 #1009 gasket. I have seen .051 gaskets on the 440 Source site, but has anyone used these? I am using aluminum heads with a compression ratio of 10.8 with the standard .039 gasket. A .051 will drop it to 10.5. Not a big drop but it may reduce chances of detonation in 100 degree summer driving. The .051 would help, and a .060 might be the limit as anything thicker may need longer pushrods, cause intake port misalignment, etc. I know that the easiest way to find this out is to call Mancini, but my west coast work hours make that difficult. Can anyone help?