I wanted this dist. I was running a single pickup LB, set at 15*. With this dist I can run 20* that retards to 15* when on N2O. This is a race car only, no street driving. Someday, I might do something more sophisticated, but my wife says I'm cheap. I say I'm frugal. I have less then $3,000 in my whole 66 Valiant.
