I am building a 71 Duster for the wife to drive. It will have a 904 with a tall gear...2.76 to 3.23 range. It will have air with a rotary style compressor. I have a 300 hp 360 magnum crate motor. It has FASS EFI,air gap intake, TTi headers, complete exhaust with Magnaflow mufflers and x-pipe. I...