Oh, also upgrade your plenum while you are at it, you won't see a damn thing for gains if you stick with the stock plenum. Accufab is the best one, Trick Flow is easily the best one for the money.
2000 Mustang GT Steeda build #48. Bolt ons, suspension, Novi 2000.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.