in my opinion the 99 or newer GT would be a better choice. the 96-98 modular motor only have like 220hp give or take at the fly wheel. the 99 or newer have the better heads and make about 260 at the flywheel. i think the newer model could be in the low 13's with basic bolt on's. i think you would have to either head swap or power adder to achieve low 13's in the older car. if you could find a 96-98 cobra that would be best. 4-valve motor and solid axel