charrlie S is the one i get me head gaskets thru. he sells a 3.510 x .021 steel head gasket. i think the felpro ones are 3.510 x .037 if i remember correctly. will mic when i get back from fishing!
Either would be perfect, but unless the .021" gaskets are easy to get I would opt for the more readily available FelPro, IF the FelPros would hold up to 13:1 CR & nitrous.
