Today I finished the cam swap from the Lunati 316/326 to the MP 528. The idle is much smoother. The idle vacuum in park went from 9-10 to around 17. The vacuum in gear went from 4.5 to 13. It used to feel like it would stall when going from park to drive even with a 1100 rpm idle. The rpm drop into gear wasn't much different but the way the engine feels sure is. I was busy with other things so after the cam break-in I just changed the oil and filter then parked it. The Air/Fuel numbers still read rich. It was between 13.2 and 14.1 during the break in period. Obviously there is more tuning needed. I have a "Quick Fuel" primary metering block in the carb. It has tiny jets in the PVCR so I'll be able to work with that.