I have a bog off idle on my 283 with a rochester 2G carb. Maybe this will narrow it down. It doesn't bog with the manual choke partially closed. I tried everything I've read on this subject. I haven't had any success. Thank you in advance. When I adjust the idle mixture screws the engine doesn't respond quite like how I have read it should. Even adjusted all the way in the truck still runs. Is that right?