I have a 89LX refer to sig for whats all done to it. I just cant seem to get this thing out of the 12.90's even on slicks to save my life unless I spray it. I know this car and set up has more. Any ideas as to what could be hurting me? Is it the F-cam or what. I ran 12.80's last year on 245/45/17 DR's with slower 60ft's. My best this year on MT ET Drags 26X8.50's is 12.94 with a 1.61 60FT. One thing I did change from last year is my throttle body. I ran a 75MM last year and right now I have a 70MM on there but I dont think that is slowing me down any. Anyhelp would be great on this.

 

what are the trap speeds from the 12.8 run and the 12.9 runs? and yes the letter cam is not exactly the best cam offering to todays market place. I would suggest you call comp and let them spec you a cam out. what heads are you using?

 

you're dipping into the 12s with stock heads and no spray? id say thats impressive enough..

 

id agree 12s with stockers impessive

 

If it is indeed stock heads then WOW!

 

If it only has stock heads then i'd have to say u r doing pretty good!