Nope, neither one of the GM original equipment HEI's will work on 6 volts. The big distributor came out in the mid-1970's, and the small one was made in the early 1980's- - - -long after the switch to 12 volts. The lowest voltage I've seen a HEI operate reliably on (after an alternator failure) was around 9.5-10 volts. Below that they start to miss and sputter.
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!