Go here:
http://www.newspeedmaster.com/html/parts.htmlGet the AI Removal kit and jet kit. While you are at it, get the "D" tool and the carb screw kit. The carb screws are soft- you will goober at least one of them and the "D" tool is for resetting your idle mixture screws. You can call the guy. His Name is Brent and he'll help you- really nice guy and "knoledgeable". Finally- get the carbs balanced when you are done.
it sounds like a lot- it's not, and the performance gained is nothing short of shocking.