idle about 700
no idea about torque converter to be truthfully honest... when i bought car the transmission was still in the car with the torque converter and No motor.. so I just went forward and proceed to drop the motor and fire.
I suspect that you have a stock "tight" converter, very little slippage.
I my mind there are a couple of things that can cause the car jerk when you put it in gear. High idle speed, tight converter and perhaps some weird internal pressure issue. Do the easy things first, go back and verify your idle speed use two different tach's to see if they read the same.
