Your kinda limited on a TBI motor unless you learn chip programming and get a programmer. The heads, intake, and exhaust are your restrictions. You can install emission legal headers, and a better intake, and maybe the LT1 cam without programming chips - but anything else and you'll need a new chip made.
Best seat of your pants feeling upgrade is a different rear end gear - right now you have a 2.73 peg leg - a 3.08 or 3.42 posi rear end would give you a better feel without modding anything emission-wise.
The stickies above yield alot of info, and the
function works surprisingly well, as there are thousands of posts on modding TBI motors for better performance.
