Check out a carb website and company called AED in Richmond Va --New Holley 750 HP all hand built for just a little more than the Demon--The Demons are OK if you get a good one if not don't count on BG to have any mercy on you--The AED Holleys are fantastic! They come out of the box about two jets rich for my stuff but are wonderful carbs! Check them out! AED customer service can't be beat!