Mods like yours on a 94-95 Mustang GT really require tuning. I gaurantee you are not getting the full potential out of your car. I custom chip/dyno-tune will solve your drivability issues and work the weak spots in the computer.
For an excellent example and write-up on this subject, go to User's Rides on this website and look for fweathers under 94-98 Convertibles. He added a complete GT-40 set-up, exhaust, and maf to his 95 GT convertible. His car dynoed 255/287 at the wheels with his mods just bolted on. Dyno-tunes the car and hits 268/304 at the wheels. That is with stock timing and stock cam. He later adds a cam and runs a 104.32 in the quarter with a heavy 95 conv.
Not only did his peak numbers improve but he gained both hp and tq throughout the rpm range. The tune took out the 2 sec delay before going to WOT, took out flat spots in the timing curve, maximized fuel-air ratio, and reset when the fan comes on to keep the engine cooler.
These are all problems that exist in every 94-95 GT. Without some sort of tuning, like expert dyno tuning, your car will continue to be a bit on the weak side. There is a guy on the Corral who added a complete exahaust, maf, gears, and a PIH to his otherwise stock 95 Cobra. He just ran in the 12's at 109. He claims the same thing, without his PIH changing the parameters in his computer (PIH might just change out the computer, I am not sure), no way he could have run that time.
Just my two cents. Good luck.
