The edelbrock AVS 800 is one of the best carbs out , for a mild big block. That 800 will slap a street avenger silly. Selection depends what you are putting it on. auto or manual makes a big difference. A 4 speed with some gearing, install a 750 DP and forget-about-it.

Volaredon- look into a Q jet , they are a bulletproof carb. After working them, actually can be Great all around.