After a very long hibernation I'm putting the '74 Spider back on the road and the question about vacuum altered timing came up as I'm finishing the conversion from SPICA to DHLA40's - shooting for Euro specs. I have the original US point distributor with no vacuum fitting but I'm wondering if I shouldn't switch to one fitted with a vacuum port to help with sudden gasoline influx from the carbs especially at low RPM. Not quite sure my explanation makes sense but shouldn't there be a mechanism helping the distributor adjust the sparks timing if the carbs are flowing more gas? I thought that was one of the point of the vaccum system.
Btw, great to see familiar names still around from the AD days...
Seb. '74 Spider
Tahoe City, CA