The original equipment line was 3/16" OD. A 1/8" ine will work, but you'll need to do some adapting. The vacuum advance has a 3/16" inverted flare female fitting.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!