Yea I tried to leave it where it was good for the 452 and eventually started taking load out and it got better and better. launch and down trac. after blowing up the 542 another 452 and it likes pre load??? all you can do is try things.
The TT night with the 542 when I went back first 1 turn then 2 the 1/2 a guy from Detroit stopped by and help watched saying they went through the same thing with a big inch and monos and cal tracs??
Just what happened to me!!

I had made up my mind the pre load was too much for all that torque (and cal had said I might have to start going back and see if it liked it)
I made a TT then took 1 turn smoother launch and easier drive. then took another the 1/2. dam then it left smooth pulling the wheels 4 to 6 inches and carrying them 20 to 30 feet then straight down broadway!! I never ran any faster 60 foot or 1/4 but it was way smoother all round.
But if your driving all over that can't be good!!!!