The A518 would work or A500 to get the same deeper first gear, but it still requires some floor surgery that I'm not currently equipped for. It has a 2.93 rear gear right now, so if I did go the o/d route, would have to change the rear gear too. Got the A999 although might be A998 and a roller cam 318 from a 87 dippy cop car for $125. Will be sending the trans for a full rebuild before it goes back in. Sorry 318willrun, didn't mean to hijack the thread.