I had something similar happen to my 264 Nailhead powered '56 Chevy. I put a brand new fuel pump on just before installing the engine. About a week later I was taking the car to New Hampshire when I smelled gas big time. I pulled over and found that the new fuel pump was pouring gas. Fortunately I had tossed the old pump in the trunk with a few other parts. I found myself replacing the new pump with the old one. I never replaced the old pump, but the parts store was good about it and gave me another new pump. I put it in the trunk as a spare. A couple of years later I sold the car to a teenage kid (His father signed the bill of sale, praise be to Allah) who killed himself and a couple of his buddies about a month later by hitting a telephone pole at what the Police estimated was a speed of around 80 mph. Neither the Chevy nor the telephone pole came out of it well.
looks great. Probably the hardest part of the restoration. I used the original flaps as a template to drill small holes in the replacement flaps. Then installed the new staples in the original places. Took like two days and two sets to get it perfect.