I finally get my v8 ranger running good. Gonna take it for a test run. When I put it in drive I can drive it at very low RPMs. If I give it any gas to try to go it shudders real bad and wont go anywhere. It feels like a very bad vibration. It bogs down the motor and wont move unless I let the rpms go very low 1000-1500. Once I get it rolling it goes OK until I give it more gas. It is a C4 trans on a 302 motor. Does this sound like something is wrong with the torque converter? Weird thing is that when it ran like crap I had no trans issues when just moving it around the yard. FYI it ran like crap cause it was way out of time and it needed a new carb which I took care of. Any ideas???