Hey Gents, I was wondering if there's anyone that might know off the top of their head if the MSD/Holley dual sync's hall effect sensors put out their own square wave signal or if it is switch from ground output to a floating output. I know their are test that can be done it's just a PITA to work on anything in the rig and I'm being lazy hoping to avoid crawling all over this truck with a ladder. Appreciate any help....Thanks