Do yourself a favor , the next time you have your tranny out ,drill and tap the case in-line with the adjuster and put a plug in it. You can adjust the pressure without pan removal.

E. Williams 65 Coronet 500 3400lbs w/d, 446, Indy EZ'S, A&A transbrake,Comp 650 lift cam, 6.50 @ 105 mph 1/8th 10.25 @ 130mph 1/4