Why wouldnt you do that first is what Im wondering? W/ all the air that your flowing through the motor you would want to have a more efficent fual and exhaust system. Get some LTs, somesort of aftermarket exhaust, 42# injs., 255lpm (high pressure unit for SC), fual pressure regulator, etc...
Do a search on Corral so you have a better idea on what your getting yourself into.