Tuning with jets, Power valves and an O2 guage

This was my point. The MP numbers are the "advertised" numbers. I thought that the .050 number PLUS 15 degrees gets you back to the advertised numbers.
Is this not a direct comparison?
Yes...I have taken the distributor as far as it can go with the Mallory springs. To slow the advance any more, I'll need some bigger springs.

so get some bigger springs or make the weights lighter.