Hi all. I have a GM 350 crate engine (330HP) that I put converted to TBI. I have to change the cam and have pretty much decided on a COMP 252XFI. I will also be using the LS6 springs locks and retainers as well as 1.5 rockers. the vehicle is a 48 chev Fleetwood with 700r4, 308 gear, and weighs...