I have a 69 Cougar, 351 windsor. engine idles strong. When i shift into drive the car stalls. Feels like i have a clutch and i popped it. If i keep my foot on the brake and raise the idle i will usually stay on and want to go.I am ggod with engines and no nothing about trannies. Is it possible the torque converter is not doing its job and letting the plates lock up completelly? and is there an adjustement for this?