LIL SS

iTrader: (9)

Last time out at the track I made a best pass of 12.33 @ 110 with dead hooking a 1.89 sixty foot. The changes I am making / have made are:

Tune / Underdrive pulley (between the two I went from 409rwhp corked to 428rwhp corked).
Lowered the front of the truck a little
Put softer longer springs in the front (went from 2.3X 60's on the street to 2.0X's consistantly but I don't think it would make a difference at the track as I was dead hooking)
Going to a 15x6 draglite in the front and a 15x12 draglite in the rear with a 315/60/15 (was using a 275/50/15)
Changing the converter from a 3,200 stall to a 4,400 stall. The STR on the 3,200 is 2.0 and the new one will be about 2.6..

I'm hoping that these changes can get me < 11.9X Any opinions and or ideas to help. Obviously shaving weight would be good but unless I buy glass hood, fenders ect I can't see where to shave weight.

XLR8NSS

iTrader: (4)

That converter change is probably gonna get you close just by itself. With the other little changes it sounds like you have 11.9 in the bag. Is the new tire/wheel combo lighter than the old one?

LIL SS

iTrader: (9)

Should be.. Fronts are a 275/50/15 on a 7" steel wheel as is the rear. I don't think the rears will be a ton lighter but the fronts should be quite a bit lighter.