-Get a LT1 cam for starters. That makes the biggest difference.
-Roller rockers, open element, remove smog and A/C
-ultimate TBI mods, maybe toss a injector pod spacer in with it.
-Manifold, edelbrock TBI or a dual plan with a tbi plate.
-Shorty's, high flow or no cats and a 3" exhaust
-3.42 or 3.73's in the rear with a carrier 3 posi
-Follow NJSped's wietght loss program
If your close but not quite there, toss in some synthetic motor and slap on a greddy sticker and you'll be there .. .