My tach twitches quite a bit too with this box. I e-mailed them about it, but they didn't seem to know what I was talking about.

I would like to have more info about the vacuum advance situation. I have always ran it, and would like to now. I just haven't taken the time to experiment with it with this box, so it is unhooked.

Has anyone experimented with vacuum advance with these boxes? What problems are associated with running vac advance? And can the issues be adjusted out?


Master, again and still