I still say it'll be celica all the way if the drivers are equal.
Contour SVT..............Celica GTS
3040 lbs.................2500 lbs
200 hp...................180hp
15.2 lb/hp...............13.9 lb/hp
5-spd....................6-spd
Granted the Celica driver would have to wring the hell out of the motor but he should have the edge no matter what the torque is. The SVT might get a jump off the line, but the Celica should be able to recoup that and more in the 1/4.
Also you have a 98 so you are 5 hp less, meaning 15.6 lb/hp.
As I said before I have seen a lightly modded Celica GTS run a 14.2 at close to 100 at Rockingham Dragway.