think my engine just blew 1st gear on my tranny.. Help
 

Got my phoenix chip today and was stoked. I had a heavy duty tranny built up 1000 miles ago with HD torque conveter, valve body, ect.. I dont know if this could cause any problems but I just wanted to say I had the chip adjusted so the torque converter didn't lockup in 2nd gear at WOT. Anyways I was driving on the 65hp dd setting. At 30mph i put it at WOT to see how it did. My rpms sky rocketed to 3800 without a shift. I quickly let off. Dont know what happened there... A few minutes later i was accelerating fairly easily and my rpms were going up and the truck was barely accelerating (about 30mph). Then all of a sudden the truck went boom and slammed into the next gear and my OD light starting flashing. Now from a dead stop the truck seems to accelerate very slow and if i manually put it in first it barely moves. I know very little about trannies and even less about tuning. Can anybody help me out? Thank you.
PS the chip has custom tuning for the bts valve body and tranny

Have the codes pulled. That will point you in a direction.

I'd say something is wrong. Try posting on thedieselstop.com. One of the guys that was on the design team for the 4R100 is a member there.