As of now i have a edelbrock 650 manual choke, manual secondary carb. And its old, i mean OLD and i am about to buy a new one, so what would be a good carb? and what cfm? I was looking at the edelbrock AVS carb, has anybody tried this thing yet? I am also not opposed to switching to a holley or something, the other carb im looking at is the speed demon (barry grant) with the "idle ease" feature, i would go with the no choke mechanical secondary carb from BG, would 750 cfm be too much carb for this motor?