Does anybody know what brand fuel pump Volvo uses with their 350 Chevies on the older AQ/Penta drives? I want to source a pump diaphram/rebuild kit. My floats keep sticking open due to mysterious chunks of black rubber jamming them up. I've replaced all of the fuel lines and diesected the old. There were no missing chunks from their liners. The next source of rubber would be the fuel pump diaphram. I don't want to open it up until I know I can get a new diaphram in case the old one gets damaged.