I'm having a problem when shifting from Park to Drive at idle.. I have large cam that will just barley idle at 1000rpm and actually prefers to idle at 1100rpm.. However, if for any reason it climbs just 100rpm to 1200 and I shift into drive, its like doing a neutral drop and hits really hard... My set-up is a SBC with TCI streefighter TH400 trans and 3000 stall.. The converter works fine when I mash the pedal and will flash to 3000.. Its allot smoother if I go to Reverse first and then quickly up to Drive.. Anything I can do?