...though he now has no idea where the base timing is set...

 

Very True Shoebox, I am glad that I added a little Timing to my re-tune. I don't think my MSD opti advanced the timing out as far as the gm opti did. I was the same way, adjusting screw all the way out. Although I do not know where my timing is either, it seems to run as good or better than before I ever changed opti's with the re-tune.

 

Yea, I am just happy my car is running better. I can open the opti when the head and cam kit goes in and see whats really going on inside of it.

 

When you take it apart, if you discover anything you should post the findings