Holley question, what do think of Vacuum Secondary vs "Double Pumper"?

krazykuda is correct, a 3310 has better street manners that a double pumper with minimal fuss. I've pretty much always run Holley carbs all of my life because I had a good teacher as far as rebuilding them & tuning them for a specific application. On my street cars I always ran vacuum secondary carbs & double pumpers on my race cars.