Whats the best way to check pinion angle on a 4-link dragster...

I use a degree finder, they sell cheap ones with a needle gauge or they sell digital ones. Either will work but to be spot on the digital is best.

Testing went great! The seat pad made all the difference.....didn't like the pinion angle though. Vibrated from the hit, so we moved it back to 1 degree neg and took care of it.
The track set him up on a .4 pro tree and he went .019, .016, and .001 on the last run with no time in the box. I know he'll get better from there now that he doesn't hate the car.....on all burnouts he brought it up to about 2500 then just nailed it and it worked just fine. 5.5psi in the Hoosiers, all runs in Supercomp trim on the stop and 60's were 1.538, 1.541, 1.536....9.50@163 at 8200ft....he's a happy guy!

Thanks for the help guys,
Johnny