>he's right about adding upper deck pressure to the injectors to increase the differential pressure between MP and cowl pressure into >the injector.

This is from TCM’s “Continental Engine Theory” training manual.  If you believe what TCM says, we have all been barking up the wrong tree. The injector nozzle behaves like the shower head in your bathroom. Fuel dribbles in big droplets at low flow rates, and atomizes nicely at high fuel flows. The air bleed is there to help with atomization at low power settings, which coincidentally provide lots of pressure differential between MAP and ambient.

-Adam Molny

Legacy #151, stock fuel injection system