If your driving when car is warmed up or almost warmed up you take a turn like into a parking space or driveway, and she begins to run rough and drop idle and stall. If you keep your foot on it a little (driving with 2 feet) she runs like garbage and doesn't seem to recover very well until you park or complete your turn. 1977 corvette. With a mild built 350 from a 68 nova. Edlebrock 650 manual choke.