dynocom dyno's are crap for doing power runs. especially if your doing a power run with no load as it spins the motor up way to fast to do any real data logging of the afr/timing.
i think you'd be better off with a 3400rpm converter too, yours doesnt look like it's launching any harder than a stock one.
I can give you some assistance through team viewer if you want to try and resolve the lockup problem. in the meantime take a look at the following thread on hpt forum.
http://www.hptuners.com/forum/showth...fts-killing-me