[Chevy454]

Follow *your* gut, Tony...I'll betcha a barley pop those TRW pistons would spec out too short [as is] and you'd be low on compression, especially if you haven't gone hog wild with decking the block...tell him to leave the pistons as is, cc everything, and I bet you'll see 10 to 10.5:1 *max*...also, that Crane cam is the way to go...