Pistons are L2316 TRW flat tops - installed they're about .035 above deck. I noticed in the Edelbrock build-up in Mopar Muscle with these pistons, they shaved .035 with the Edelbrock heads - I'm assuming giving them around 0 deck height. Anyway, the pistons I'm pulling out are ancient TRW domed slugs, pop way out so I (and machine shop) assumes no issues with the flat tops with my X heads. Comp ratio calculates to 9.7:1. Anybody have any experience with these pistons ? - they seem to be pretty popular tho heavy. Decks untouched as far as I know. I'm going to build this myself and would do a piston-valve clearance check if I thought necessary (never done it before). Any recommendations on head gaskets other than what comes in the rebuild kit (FelPro or .....?)