I found this old school engine analyzer for my old school engine. Before computers and multiple engine sensors and electronic controls tune up shops used engine analyzers that were the laptops of the day.
This one had been a garage for 15 years and although some of the wiring is questionable all of the pick up and sensors are present and it has the original operating and wiring manual. It is heavy but on wheels and should be a good visual addition even if I never get it working.
oldschoolgasser.com 