something that would be a low budget build , maybe a chopped , dropped pre 92 chevy s-10. a bit of ground effects, french the frame into the floor,easily tubbed for wide tires, a mid 300 h.p. 350 and your turning 12's in no time.
just a thought, but if the 84 backfire(sorry) is getting boring, juice up the 350 and put it in, save all the original parts in case you want to sell it later.
I just had the 350 in the 75 vette done (was 165 h.p.). It now runs at about 350 h.p. sweet, its like a new car.
whatever you do, have fun,mike.