Can anyone give me some ideas on where to look for reasons why my 72 Challenger drifts to the left during a burn out?
I get into the water box, begin my burn out but before i can really get the slicks warmed up, I have to lift because the car gets out of shape. Then it spins at the launch.
I have the same issue when I run with street tires so I don't think it is the slicks.
Here is my set up:
Car runs around 12.1 to high 11's in 1/4.
Big block
727 Automatic with 3000 stall converter. No trans brake.
Dana 60, 4:10 gears and Detroit locker.
Cal Tracs mono leafs and adjustable shocks.
M/T ET Street Radial Slicks

Shocks were set pretty light during a test pass but I then stiffened them up. Same setting on both. Same results.
Air pressure for the slicks were both at 17. Also tried 18 and 19.
Cal Tracks are adjusted to "just touching" on both sides.

I put the car on jack stands. Weight being on the suspension. I took measurements and the car is square.
I took diagonal measurements LF to RR and RF to LR.

I am going to check the slicks to make sure they measure out the same just to be sure but I have the same problem with street tires .

Any ideas on what else I should look for?