Re: wide open throttle
4400 rpm, I believe. Anything you do to your motor, you want to keep the torque curve in the low to midrange. You can also stroke that motor using a 331 cid kit. Cost you a few bucks though. A 500 cfm 4 bbl will help some, but if you think you might stroke it in the future, go with a 600 cfm marine carb.