Not sure if this is relevant to this discussion but when I installed my Customefis (tbi) system I used the original distributer minus the vacuum advance weights/springs and a GM 4 pin module. The GM module gets mounted on the fender and splices into the original module wiring. I'll take pics sometime if anyone is interested.
Steve<br />1986 J-20 360 cid/auto, trac-loc, custom efis tbi, flowkooler, aluminum cross flow radiator, rhino-liner, working AC. <br />1990 GW trac-loc, Engle cam and aluminum cross flow radiator.
<br /><br />\"The best Jeeps came from the past when gay meant you were happy and Aids was an appetite suppressant"