Would a 3.9 FD put me in the low 13's to high 12's? and what shot of nitrous would be required to put me in this bracket. does anyone have experience with both types with our cars? how is the extra noise on the FD, is it unbearable? or is it streetable without being annoying and would i have to get my speedometer recalibrated. Thanks for the help guys i really appreciate the people who respond. Thanks!

 

You're telling us you have 312 RWHP and you're not in the 12s? You should already be there if you know how to drive. And if you don't, I would think just about any nitrous should put you there. Leave the rear end alone. Do you have an LSD?