I have a 19 ft Jet Boat with a 454 BBC and a Berkely 12 JC pump. I have been running the boat with an Holly Electric fuel pump. Fuel water separator before it. The boat was running fine when I put it up for the winter.
Now after running it for a few miles up river it is stalling like fuel starvation.
So this morning I changed the cap, rotor, coil and ignition module to rule out electronic. It would not start. Then I changed the carb to a Holley 750 double pumper from a Holly 750 Vacuum secondary. The boat started right up and ran like a bat out of hell. Then after sitting for awhile on the sand we ran up river about 8 miles. Turned around and the boat stalled again. Could not keep it running just sputtering.
I even installed new marine grade fuel lines from the tank to the separator a few weeks ago. I'm starting to lean towards a bad electric fuel pump.
Any suggestions would be greatly appreciated.