[expavr]

"You can blow through a carb ,but there is some fiddle stuff you have to do."

I'm using a Holley 4150 carb modified to deal with the boost. That and a boost referenced fuel pressure regulator and some plumbing is about all you'll need for a blow through carbureted system. The big plus with a blow through system as opposed to the pressurized box system is that you can tweak the carb's performance more easliy. Looking at what your trying to accomplish a blow through system might be the easiest way to go. Determining what pulley configurations will be needed to generate the boost and then locating off the shelf pulleys could be the biggest challenge you'll face. A very interesting project...