I REALLY want to keep it tbi but if that wont give me the power i need im not sure any more... Ive heard about using the 360 tb and computer giving more power but got no proof of that. Might try that first if i can find the stuff. That with good exhaust and removing all the egr and air pump crap could be enough for what i need. Gears should be fine when not using od. 3.55s