Timing Light

Exactly why I will not use a dial back light. The computerized 300 buck ones work good......but to heck with all that when the engine will dial it up for you.

I diffuse ,on this... My dial back Mac, is absolutely proficient . with T.M.M.'s handiwork... No problem on my end(yes I have twice checked with non read back lights...It's why I was fiesty to keep it..)