Distributor Vacuum Advance

[Paul 500]

I'm having a nightmare trying to get a vacuum advance for my dizzy, I found this one it looks correct but has 10.5L on the arm where as mine has 9.5L on it. What is this number, whats the difference & will it fit + work.

[John_Kunkel]

The stamped number is the number of degrees of advance the vacuum advance provides. (distributor degrees, double that for crank degrees)

[Al]

Good to know John.

[Paul 500]

Thanks