[mdross1]

Have always run Holleys on everything, carb of choice will always be the double pumper.The 460 in our car is basically what you have,and without hands on your motor it would be very hard to give advise without a few basic checks.Having a feel for what each circuit does in a carb and how best to adjust it makes it an easy chore,without that feel a headache.The 850 dbl pmp that was on our 460 was dailed so this motor is very crisp.Now running a 1000cfm Dan Davinci tuned Dbl pumper,clean idle and still crisp the way it should be.Having a tuning kit (jets,power valves,squirters,tools to check things) makes working with Holleys/Demons a treat.Otherwise ask around and find a good Holley person.Good Luck