1976 American Eagle (American Boat Company) with 351W; new Edelbrock 1406 600 CFM 4-Barrel Carburetor, Edelbrock Performer intake (older version), Edelbrock 1791 Electric Fuel Pump and Edelbrock Max-Fire Distributor. New ½ inch fuel hose from new vented tank to remote spin-on fuel filter/water separator then to pump. Mercruiser 888 but I do not know the pitch.
Runs very strong out of the hole at WOT to just short of 5k RPM but then 5-10 seconds later it starts to hesitate. Back it off to ~4500 and it runs okay again. Back to WOT and it hesitates again. The carb has the original jets. I think when I am backing it off it is running on 2 barrels but not sure, just sounds like it.
The 1791 fuel pump with 120 GPH is what the tech specs for the 1406 say it should be running but is this issue it running out of fuel? Any ideas?
Runs very strong out of the hole at WOT to just short of 5k RPM but then 5-10 seconds later it starts to hesitate. Back it off to ~4500 and it runs okay again. Back to WOT and it hesitates again. The carb has the original jets. I think when I am backing it off it is running on 2 barrels but not sure, just sounds like it.
The 1791 fuel pump with 120 GPH is what the tech specs for the 1406 say it should be running but is this issue it running out of fuel? Any ideas?