I have a 66 chevelle with a 283, PG, and a 3.08 rear end. I recently installed a new TCI saturday night special torque convertor with a stall speed of 1600-1800. Now when I run the car: when its cold it runs fine but when it warms up and in drive at a stop, the rpms drop and it stalls out. I tried increasing the idle, but the idle has to be at 1800 in order to keep it from stalling in drive and at a stop.