Prices on 454\'s? Just wondering what a crate 454 would cost me? I've been tinkering with the idea of dropping a big block in my truck. I have an '88 K5 and I really hate to give up the TBI. How much crap would I have to do to go from TBI to carb for a 454? I don't know what to do!! Pedal mashed and KICK'N ASS! WFO! Wide [censored]'n OPEN!