hey everybody... brandy spankin new to this page, I just picked up an 84 shortbedfleetside chevy , with a 6" lift, the guy I bought it from doesnt do mech work but his brother apperantly builds race cars and decided to have a little fun with his brothers truck. It came with new bf goodrich 33x12.5all terrain ,duel eghaust with shorty mufflers a 350 motor bored 30 over with edlbrock carb, intake and cam, not sure of the specs,decent body with the brackets for 5th wheel towing. it`s nothing but engine and drive tain and no bs, the problem now is after owning fords from86 -92 I mhave no clue as to the tune up specs for anything even slightly high performance . (the best part of the truck was the price!)