Thank you everyone who posted on my problem. The car was stumbling at very light throttle at 1200 rpm. It turned out to be cam sensor realted. After the car was running I unplugged the sensor and everything smoothed out. The little screw that holds the brass cup under the cam sensor cap was loose. I had the cam sensor pulled and the gears checked for for wear, reinstalled the sensor and the car is running great. This also got rid of a tip-in stumble I had for years. 
