Before the IC, you'll need injectors I bet. I bet you're close to maxing them out now as you set. If you do an IC first, I wouldn't drop pullies until you AT LEAST do some 42.5 Inj and a good fuel pump rewire. Scan Scan Scan

Oh and if you do an IC, get a Full Sized and not an SS. An SS would be half assed doing it IMO. With those mods, you need the Full Sized (actully, EVERY GP needs the Full Sized IC)...