I like to see 2 degrees negative for a street car.
If the transmission slopes downward 5 degrees toward the rear, the pinion should slope upward 2 degrees toward the front.
This is referred to as 3 degree negative pinion angle. I consider 4 degree negative to be the maximum for a true street car.
thank you doctor diff....thats what i am going to do.....i will report back when i am done with the test drive.....3 degrees negative pinion angle 
I see you wrote car worked good. Is this what you have it set at?
