Help me out here. I have a 93 mustang lx. Rebuilt 351w,gt40 3 bar heads, lunati 280/290 with 472/496 lift camshaft, edlebrock performer, summit 600cfm carb, t5 trans out of 99 v6 stang. 3.73 gears in the rear. I built this car to be a reliable street car that could still kick some import ass if needed. I was bored so I took the car to atco raceway 1/4 mile to play around. Problem I have is when I hit about 1/8 mile my car starts to fall flat. My car is reved out in 4th gear and I need to switch to 5th which really slows my momentum. I was racing an 01 gt and i was 5 car lengths on him but we finished both with the same exact mph which tells me I'm really falling off towards the end. Is my setup not right?? I know t5 trans is not exactly a drag racing trans but is it the trans gear ratio that's killing me?