If you have emissions to deal with, get one old enough that it won't have to be tested. I had a 1776 with dual Webers, and there was no way that thing would pass an emissions test. I also had one with a stock manifold, except for the center section, which was designed for the 2 barrel Ford Pinto carb. Believe it or not, that actually worked fairly well. Not fast, but lots of torque. Peace, Jerry.