I Had A Similar Problem. The First Thing I Did Was Cutthe Gasket On Top Of The Needle. The Cork Gasket Sagged Into The Hole.it Wasn't Letting It Move Up Far Enough To Feed Fuel. The Next Time I Took The Needles And Springs Out Of The Electric Solinoids.both Of Them . The Car Ran Great After That.you Can Buy These At Napa. Rather Exspensive
6 Subie Wagons And Counting