What will it take to get a stock 95 5.0 5spd GT Convertible to run 8.5's NA for the least amount of money. 8.5's in the 8th, no quarter. Mods already done are 4.10's, cold air, long tubes, x pipe, flows. Already decided to put 1.7RR in it, what else should i put in while i'm in there? If you know the part numbers for each, post up, thanx a lot!