Unless you have a stout smallblock, like to run it hard, do yourself a favor, stick with the 600-650 range of carb, preferably the vac sec. You will get all the performance you will need......everyone thinks they HAVE to have a DP carb. If you are running a big cam, lots of compression, a LOT of gear and/or converter, then a DP is in the works. You have a mild smallblock, be wise.
Wow, the Quadrapukes are valuable now? I have a large box of all kinds of parts for them from over the years of modifying and trying to get them to do what I wanted....sounds like flea-bay fodder (gold).....lmao