See you totally lost me. LOL
So others with my combo get higher vacuum readings and I can only pull about 13.5-14 while tuning the carb. Now if I twist the distributor to increase my initial I'll get a higher reading around 15 + which is what others are getting. But I think that Im at about 24-26* initial at that point. Timing I get but obviously I dont get it at all.
Rhoades lifters will help a little with MPG...