Just a couple of questions for you tranny gurus. My 87 GN has a PTC 9" n/lu convertor....stall is 3800.. My problem is the car refuses to stall up to 3800 at the line. So far the most I could build was 3-4# and the motor was definitely not being allowed to rev. Will the n/lu valve being installed incorrectly cause this or will it be limited just to the convertor not being right? Any help would be much appreciated so I can get this beast to run like she should.