Ok long story short my 88 GMC 350 is dead, going to spend the time to rebuild it right and want to know how much I can achieve and keep the TBI. I really don't want a different computer system but would go for a custom burnt chip and upgraded parts if they arent to expensive. I was thinking rebuild, the right cam, a set of vortec heads (they make a TBI intake for vortec heads right) and headers plus whatever I need to do to the fuel system. Am I stupid for wanting a little over 300 hp with TBI??? Help me out please!