stall converter is one of the last things i would do unlike cars like the ls1's, if you do a pulley, you need tuning so get the predator and see Sam, i would do an intake first b/c you will gain about a lb of boost even in hot weather with it, as far as suspension, they have a leaf style thing but for less than 400 bucks you can get stuff so that you hook as long as you have sticky tires on it