Picking the stall range for your Restoration or Street Vehicle can be a little tricky. Cataloged stall ranges are picked by the vehicle’s basic set-up (i.e. horse power, engine torque, vehicle weight, etc.). The stall range will vary from car to car. This means, the converter must be matched up to fit your specific vehicle’s set up. A built engine with all the goodies will need more stall in order for the engine to idle correctly. We would suggest you consider one of our Night Stalker style converters.