[steelcomp]

Slick is right...those really aren't the right carbs to run on on a road car. They are a drag race only tunnel ram designed carb, and were really designed for WOT use only. Boat guys love 'em, but because of the "liquid hook up" many of the problems are covered up. Besides, most guys that run them in boats are always wide open.
Why no vac. secondaries? I had a pair of 1850 600 vac sec carbs in a dual 4 application that were a pair of the best carbs I ran. There's a couple of things you need to do to them, but they were EXCELLENT! Double pumpers have their application, but for the most part, a good set up w/ vac secondaries is much more driver friendly on the street and will give you just as much bang for the buck.