i finished putting it in today, and when we started it, it ran kinda lopey and tried to die, doesnt have a lot of power. the tach jumps under load, kind of jumps up in small increments. and tries to die, never does, just gets really low and bounces back up to a smooth somewhat lopey idle. but the lack of power is concerning me as is the tach jumping. i want to say its in the tranny, like the torque converter, because it slips at high revs, and doest fully hook up at first start off. any ideas? and i havent changed out the plugs wires cap or rotor. but would that cause this?