Good, Thanks. Hope all is well there!
When I changed my Y-Manifold to incorporate the fuel log it cooked my fuel. It didn't effect my pressure reading but wouldn't idle for $#&@ when it got warm. I slotted the uprights eliminating some of the heat crossover. I don't know if heat has anything to do with your problem but sounds like you have been going down the list eliminating possibilities. Also seems to make sense that pressure difference may happen after regulator. I also run a mechanical pump with a regulator but on a much smaller powerplant
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