What people fail to understand is IT WILL REQUIRE A LEAN MIXTURE to place PPP at the right crank angle to run best with that much initial advance. Start with something like 12-16 Initial and jet accordingly. Engines don't vaporize much fuel at low RPM's that's why they require a rich mixture as they run on the lighter fractions (Fuel is made up of different chemicals that convert to gasses at different temps) Timing and Fueling go hand in hand and if you use too much initial then it will require a lean mixture to match.