something else to try after your new parts
I would definately look at the fuel tank vent.This has a sign of a fuel tank not being able to vent. I would rule that out by disconnecting the fuel vent line temporarily while running under similar conditions that you have already done.This is a test that costs nothing.If the valve has failed and wont let the tank vent,It's like sucking out of a bottle.
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SIKSUKR
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