Hello, Here Goes I Have 1980 Wellcraft Suncrusier With Twin 454's , Just Finished Tune Up New Plugs Wires Points Etc.. Was Having Issue At End Of Last Season With One Engine Cutting Out After 3k Rpms. Noticed Fuel In Bowl On Side Of Fuel Pump Which States That Fuel Pumps Bad So Replaced With New Pump And Filters. Now Only Getting Whatever Fuel Is Poured Into Filter (before Fuel Pump) To Carb, Nothing Coming In From Fuel Tank To Replenish Filter.i Pulled Feed Line Off @ Filter And Could Siphon Fuel Through By Mouth From Tank So Line Must Be Clear?? Any Help Greatly Appreciated