Senior Tech Team
Join Date: Apr 2012
Location: Yerington, Nevada
Re: Question on HEI Installation
The whole idea was to make ONE integral system, all parts unitized, so they would work the same for 50K miles, without changes to timing, spark output....for emissions compliance.
To do so, the coil had to be in the cap, and the mechanical advance start, limit and curve had to be in the weights and center, springs combination. ONE platform, all the curves available, for all engines, and, both left and right rotation.
Consider the previous version, same size cap as a point distributor, NOT an HEI, but had a module, cap, wires and coil were ONE assembly, have a problem with any of it, you get to buy the whole works. They didn't last long, were called the "Unitized". I have one someplace here, strange conversation piece.