I have a digital dial back light with rpm read out.
You'd be surprised how inaccurate many of these are, esp the cheaper units, they'll have you chasing a "ghost" when it's the gun all along....
IMHO, buy yourself a basic/standard quality timing gun, or at least one to confirm the results/settings with your dial back
I've compared my light to two other lights and it's always the same, and I know my balancer is correct, I've verified it with a piston stop. My light wasn't a cheap piece of crap ether. I have the digital dial back light and then a regular dial back light, they are within a degree of each other, the older light will read a degree lower then the new digital light. Another question for rapidrobert, what size drill bit will I need to add new slot to the reluctor? And will my idea work? Can I pull the distributor and apply the mity vac to it and then spin the distributor by hand to see how far off the rotor is from the cap terminals? ,
