sc300 or the vette. Wait, 88 vette, is that hte LT-1? I dunno, regardless make sure the optispark is replaced. Either way, those are gonna be the best for mods, vette of course is a 350CI, l98 or lt1, and the sc300 is a 2jz-ge, basically the supra tt motor, without the tt, no oil squirters, and has a distributer instead of coils.