I wasn't trying to be arrogant with my post. I went through a similar situation with my 350 transmission. I figured my suggestion couldn't hurt to try. It worked for me. I learned a lot from all the post. Glad it work for him.
i for one didn't take it that way as Rick said we just took it that it didn't have any power on take off either in third or no torque multiplication from bad converter I've experienced softer shifts after changing to a stall converter I had a 70 monte carlo i put a built 6.0 & 4l80e in stock converter when i swapped to a 3000 stall FTI converter shifts were softer but still ok but it smoked the trans in short order as the cooler that was fine with stock converter sure wasn't with a stall converter lesson learned & a shift kit & much larger cooler were added once i rebuilt the trans