In trying to track down problems we swapped out the Barry Grant for a Weldon. Since Ol' Barry gurantees their product and all you have to do is ship it to them with a description of the problem they fix and send back to you all beuatiful, shiny and almost brand new. Here's a description from Jeg's website: $499 shipped. Will be on ebay if you guys don't take advantage of the price break.
Barry Grant 170042 - Barry Grant Sumo and Enduro Series Fuel Pumps - JEGS
Extreme quiet performance, regardless of demand
Greater fuel volume with low amperage draw
Fuel cooled motor design
Interanl bypass, requires no return line from pump to the fuel tank (All Sumo pumps require a bypass at the engine and a return line from the bypass to the tank. For high-horsepower carbureted applications using Enduro pumps that spend a lot of time at idle or part-throttle, using a diaphragm-style bypass is recommended.)
Streamlined armature design inhibits cavitation, delivers more fuel, less noise
100% billet pump and motor housings provide solid pump and armature mounting
Integral 8-micron stainless steel filter fuel screen
Integral dry break design prevents fuel spillage when cleaning screen
No pump shaft seals, ends all fuel leaks
Can be mounted either vertical or horizontal
Barry Grant 170042 - Barry Grant Sumo and Enduro Series Fuel Pumps - JEGS
Extreme quiet performance, regardless of demand
Greater fuel volume with low amperage draw
Fuel cooled motor design
Interanl bypass, requires no return line from pump to the fuel tank (All Sumo pumps require a bypass at the engine and a return line from the bypass to the tank. For high-horsepower carbureted applications using Enduro pumps that spend a lot of time at idle or part-throttle, using a diaphragm-style bypass is recommended.)
Streamlined armature design inhibits cavitation, delivers more fuel, less noise
100% billet pump and motor housings provide solid pump and armature mounting
Integral 8-micron stainless steel filter fuel screen
Integral dry break design prevents fuel spillage when cleaning screen
No pump shaft seals, ends all fuel leaks
Can be mounted either vertical or horizontal