Man i drove a 5 sp for 12 years and always had no worse than a 1.70 sixty. As i drove and learned the car the 60s got down to low 1.60s and mostley high 1.50s. I think you need to learn to drive this higher hp car that is now done.. Ill bet with the knowhow youve got you will be cutting 1.51s in no time.. Thats alot of hp to relearn how to drive it.. :