[91LX2Bfast]

98gt5spd - you have a 14 sec car, but you are just a 15 sec driver right now, and thats fine. We all have to learn sometime. We took my brothers stock 99GT auto to the track (it was his first time racing,) and his 60fts were 2.5sec+ and ET's were in the mid 15's for the night. I hopped in the car, cut a 2.0 and 2.1 60ft time on the stock Goodyears, and ran a set of 14.2's. What caused the difference? Experience.
First off, those Kumho's are great for the street and twisties, but they aren't too good on the track, or anywhere from a dead stop. But you should still be able to get the 60ft time down to 2.2-2.3, but I don't think it'll get much better on those tires. The other thing we need to look at is your shift points and how fast you are shifting. First gear I would shift at 5400, and 2nd and 3rd between 5100-5300.
If you get a chance, post the whole timeslip so we can see what was going on downtrack also. We need to help get you in the 14's.
Since you need something "cheap" to help out your ET's, you best bet right now would be a set of drag radial's. You can find a set of 15 or 16" stock Mustang rims for dirt cheap (its fine if they are scratched or the paint is peeling, it'll make them that much cheaper.) The throw a set of Nitto of BFG drag radials on there and get you 60ft times in the 1.9 range. With your car's power, and improved driving technique, you would have a mid 14sec car with no doubt in my mind.