Ive got a kit on the way from Mike L for my trans, it consists of valve body upgrades, a few diffrent types of clutches and a converter that mike designed for the lml. Air upgrades specifically fir the lmm and lml are being developed by Mark at Danville. He has a new 68 4094 that has hard parts designed to fix the coding issues associated with these trucks, says its good for 650+ rwhp. Ive talked to him and he has ageeed to go ahaed and send me one, im just going to wait untill my trans is together to pull the trigger. As for fuel, just put a cp3 over the cp4...