Been having trouble starting my cobra when hot. Thought I had a leaking injector because it would stumble when it started. My mechanic ran a test today and found I was losing fuel pressure from 60 to 6 lbs in six seconds after turning the engine off. No engine miss fire in any cycliner histor in computer. He feels it's the check valve in the fuel pump. I was told my car has ford gt pumps but no way of knowing without pulling the tank. Pump is working good other than losing pressure. Just thinking outside the box why not install check valve in the fuel line ??? I'm sure someone will set me straight why this won't work. If it won't where can I get ford gt pumps ?