There is no mention in this topic of shock settings... What are your Hals set at, front/rear? Are you getting good enough weight transfer to the rear tires? Are you getting tire spin leaving off the brake?

 

Reread Big Mike, he's tried a bunch of different settings.

 

OK, I saw it. I missed it first read around.

 

I use a window switch and a 2 step on juice, adjust it to find your limits.

If your converter flashes at say 4500, set the window switch @ 4000 and
the 2 step @ 3800.This is just an example, but you get the idea.

I run hoosiers, hook like glue.
But some of my renegade friends say to run Mickeys,and that they work better
in high HP cars.

 

i think ya lost it in the gear change. the 4l60 had a lower 1st gear than your new 3 spd. perhaps looking at that aspect might yield the answer.

 

I can't help but wonder about that Eaton Posi you have. I had one in my Moser 9" at first, and was doing partial one tire fires. Got rid of the
Eaton and went with a Detroit Locker. I haven't gotten my setup on the hose yet, and after I do it may not work well enough with the locker either. At your HP levels, I would have to suggest a spool, but you might be lucky enough to be getting it all to the ground equally with that Eaton. Good luck.

 

What kind of front springs are you using? I recommend 6 cylinder springs.
I know that some 4th gen. Firebird race cars are using solid alum. bushings instead of poly. They also run -6 on the pinion angle.

 

Guess, did you ever get the car down to the 60ft you wanted?

 

No John he hasnt. I know he tried a different launch technique but i rear somewhere he ate 5 plugs doing so. I dont know if the motor is hurt or not though.

Mike