This. I did the same thing -- went through the Summit/Jegs catalogs a few times, swapped converters in my TH350 a few times trying to get it right, and never could...I never had a PTC, but mine is a BDR converter. He's out of Buffalo, NY. Worked great out of the box for the 383 I had, and the few times I had some full throttle romps just fooling around with this 402 before I shut it down I still love it. I did what [USER=67]@Jody Treadway[/USER] said back then...called the guy (whomever you choose), answered his questions, gave him the magic 16 digits, a date, and 3 more digits after that, and a week or so later had myself a torque converter that I think I'll still be happy with running behind this engine. ....if I ever get it moving again...
Hell, if it wasn't for the lack of time to pull it and the ride both ways, I'd send mine down on the brown truck just so you could give it a shot and see what you think.