I have a built tranny by a local guy in Houston and a circle d 4c..... I've made probly 20 passes with this set up and havint had any problem with it at all. I parked my truck for about a month so I could fit my bogarts on, I takethe truck out and 1-2 shifts firm like always but my 2-3 acts weird and when the converter locks up while I'm cruising it seems like it spear lock up completely. It was drop rpm to about 1400 but if I give it a little gas the Rpms jump up like is not locked..... Anybody have any ideas on what is wrong? My transmission or my converter?