today i got my 373s installed and am trying to tune my car for them. i just did the canned 87 and all i did was change the axle ratio to 373(i didnt mess with fuel or timeing). now it shifts into 2 rally hard and at 3,000 rpm which suxs for city driving. all i wanna do is change the gear raxio no time.fuel or trans changes i just cant find out how to do it. also were it lets u pick fuel trim or trans press is -mean more press(u feel it more)or does pos# mean u feel it more?