Don’t know if any of you guys are using this but I just finished installing, and made a blast through the gears and downloaded the results. This is if you don’t know some data acquisition equipment from Altronics. It is their O2Alert system with optional O2 sensor. Installation was not hard and the results on a screen are super as they tell it like it is. Can be save and reviewed at a latter date. Believe this will help to validate plug readings. If you are what type of results have you had and what do ya think? Cheers!