It's the one with the impco regulator.
after you drive it for awhile the engine starts to miss and break down.
No code given.
Fuel filter is not freezing up.
Plugs have been changed.
Tried draining the reg, nothing in there
Fuel pressure is 2.5 psi while running. Not sure what it's supposed to be. We have the books on this but together they are a foot thick and the fuel pressure was not in the fuel section.
Any ideas please.