Update: Then and Now Automotive in Weymouth, MA (call 781.335.8860 rather than the contact form) hooked me up with a (marine) rebuild kit. I highly recommend talking with Tom as he is very knowledgeable.
Anyone have a Carter Marine MC-988 Fuel Pump or know where I can get one (or even a rebuild kit)? Mine has failed and is on a 1964 Ford Interceptor 260.