I'm far from an expert on the subject but what I've been told is best or easiest to balance the linkage is a center pivot/pull system. I used the standard 4 barrel linkage points but had to lengthen the firewall rod 3 inches for the center pull arm. Though far from ideal for you to digest I've attached the picture below for you to try to figure it out. Any of the weber groups sell the linkage rods & ends so look there first. I've found Pierce Manifolds to be the most helpful and FREE with their knowledge regarding all aspects of webers from jetting to linkage issues - ask for Doug. In return I have given all my subsequent business to them for such a wise business policy and service attitude!
Pierce Manifolds #408-842-6667
