Hmmm.....you're only getting up to about 2100 before it pushes past the brakes with your 3500 stall? I have a 2500 stall and crappy drum brakes all the way around and I can load it up to 2000 no problem without having to worry about sliding past the line. Maybe that's because you have a helluva lot more power than me?
Do you have power brakes? Are you making enough vacuum to hold them?
I don't really know what to tell you besides that the guys that are getting 1.5 60' times are most likely launching a lot higher than 2000 revs and have a transbrake.
My best 60' is 2.5 on street tires (launched at about 1200 rpm, tried a 2000 rpm launch on my first run and didn't move for a couple seconds after I gassed it, lol)...really horrible track (no prep, have to run outside of the grooves)....it's also at 3500+ ft....but the car was all over the place. It was pretty challenging sometimes to keep the car going straight. With slicks I should probably get a 2.1 or 2.2 out of it.
Not sure what to tell ya......
