its gonna be in a 1970 chevy c10 long bed its gonna be mostly just cruzin the streets and very little track time like the last friday of every month from march to october at roxboro track for freaky friday and that will be just for fun with some friends. im gonna run 93 octane and i am eventally put a blower on it.as for rpm no more than 6000 if that. i help a couple of buddys with promods and i have a 383 in the truck right now so i know im not gonna get 1200 hp on pump gas and run on the street and run 4s at the track for 3000 bucks.and i was going with a 4.56 bore and a 4.25 crank but the rods is where i need help with making up for the .400 longer piston im pullin out for a standard piston and the block was givin to me so i really wont to use it. thanks