New the fourm but I have a few questions 1 I have rear air but the far rear only blow not the front ones?? 2 Do I need to remove the throtle body the clean it?? 3 WHERE CAN I FIND A SUPER CHARGER FOR MY 4.7L?? What is the best chip for the D?? What is the bolt pattern, and I know 23" rims will fit but what size tire? I was thinkin 20"s or 22"s but what tire size I think a 275/45 will work???