The previous owner of my T/A brazed the distributor vacuum advance arm in place (Pictures attached). I replaced the vacuum advance unit with a similar unit. We dyno'ed the engine after rebuild, the tech at the dyno shop thought there should be a spring in the vacuum advance unit. Checked the shop service manual, and they don't have any service procedures for that specific distributor and vacuum advance. Should there be a spring in it? If so, what wire diameter, outside diameter and...
Dual Point Distributor Vacuum Advance Spring
Dual Point Distributor Vacuum Advance Spring
