Sponsored Links (Register now to hide all advertisements)
Comparing distributors is, to me a fuzzy thing because the A with the manual advance will be all over the map for vacuum depending where basic is set and where lever is set. B same thing for basic timing and except for all of the variables in camshaft profile, timing covers and A vs. B block variables and condition of centrifugal timing on B dist. Like comparing track shoes to horse shoes.
I commend your use of the vacuum gauge though.