i was going to build me a 383 i just really want to build somthing with about 375hp or 400hp with the things i have.I have a 350 4bolt main bored 60 over speed-pro flat top 2 valve relief trw floating rods and a set of double hump heads with the 2.02/1.60 valves and the 1.5 roller rockers and a lunati mechanical .517/.543 left i have not got me no intake or stall to match the cam. i want to shave the block is that a good thing or a bad thing and could u all give me som good tips to what i need to do to make the hp i would like with the things i have. THINKS