Report "Go out in AM, car is cold, starts and runs fine. Drive short distance, stop and restart, runs fine, idles fine. Drive about 8 miles at 50-55 mph, pull up at a red light, when speed gets down to ~25-30 mph, car stalls. Carburetor has been rebuilt. Put car in neutral or park right after it stalls - it starts right up and will run until you slow down to 30 mph or slower, stalls, As long as choke is closed enough, it seems to run fine. We really appreciate your help. It has been a major problem for months, and multiple shops have been unable to fix it"