Just wondering if you got a carb yet? If not I can tell you what I know. My friend bought a "BRAND NEW" Edelbrock (carter style) carb and could not get it to work like it should on his 350. I do like the Quadrajets. They are usually the best compramise you can get for good performance and fuel milage. I decided to buy a "BRAND NEW" Holley model 4175 for my Nova. It was a spreadbore style that worked great right out of the box. Ran a bit rich but no big deal. The electric choke was amazing. One pump, turn the key and drive away. It was like I had fuel injection. After a few years I decided another upgrade was in order and this time I picked up a used (but like new) Speed Demon 650 vaccuum secondary and electric choke. I've only driven the car once with this carb on it and this is definately the carb I'm going to stick with. It really pulls hard with this carb. Although I haven't had the electric choke hooked up so I can't say how well the choke will work. I would definately recommend a 650 Speed Demon. I'd say you probably wouldn't want anything bigger than a 650 and vaccuum secondaries are great for the street. Good luck!