Replaced the fuel pump and fuel line to the carb. I had a Carter fuel pump and a rubber line to the carb with an in-line glass fuel filter. That was supposed to be just a temporary setup as I had read enough times about that being a no-no. Well, the car was running fine so I just kinda let it be, until it started dying after running for only a couple of minutes. It was starved for fuel. I replaced the pump with one with the integral fuel filter canister and bent my own hard line out of Cunifer tubing. I like this much better, and it runs like a top again. I figure there was a problem with the old pump, or there was a small leak somewhere in the rubber line.