[mdross1]

Years ago played with vacuum sec Holleys changed everything trying to get instant throttle response just not there. Finally picked up a dbl pmp dialed it in to the engine the throttle response was exactly what I was looking for.
A dbl pmp Holley has a slightly rich idle built in, which with adjustable bleeds can be tuned out. Even better have a pro carb person flow the carb. The difference between the two carbs for me a least was worth the extra money