I have been highly considering getting a sc. I have a daily driver mustang v6, and am getting another drag/ weekend car. Well long story short, what does it take to get a 89-93 auto (just say most all of them around here are that no 94/95s) to run 13.7-9? What will these mods net, gears, m/t et streets, shift kit, full exhaust (shorty or ported headers), intake, pulley, and whatever other lil misc things?