I have been running my car for a while now at moroso and i am just learning how to drive it.I have a 86 t-type with a stock rebuilt motor no internals and good head gaskets a 60-1 with a stock intercooler,3000 stahl convertor,36 lb injectors and other misc crap and am having probs with my 1/4 mile mph.I am runing 90 in the 1/8 but am at 105 in the 1/4and ran a 12.2.I did this with a 1.75 60 ft and on 20 lbs of boost.I also had a driveshaft that was a little out of balance the snap[ed like a twig at 110 mph last night but i was wondering if a vibrating drive shaft would kill my mph.The driveshaft wasnt bad till last night when it twisted like a twig and snaped but that was my bad for not getting it balanced after i broke a u joint.I have run the car before i could launch it and with 2.2 to 2.4 60 ft times i went 110 in the quarter with like 25 lbs of boost.Any input would be helpful.