Has any one got some advice or tips for my drag power tune, mods are bone stock ls1 and cam, d1sc procharger, fast intake, 92mm fast throttle body, 1 7/8 headers twin 3 inch exhaust, 2 044 bosch pumps, 78lb injectors, th400 box with trans brake, 3.5 diff gears. It's running about 6.5 psi and we run a 12.3 on the week end in a 3700lb car with out the trans brake. So I am going to up the boost and run e85 but I would like to exhaust this set up first. Any tips would be great thanks..