Here's a direct link to the article Dave mentioned:
http://www.packardclub.org/html/electric-fuel-pumps.htm Read this article, it agrees with what Owen and Kevin are saying above!
Now I need to go fix my electric fuel pump installation...
Any discussion on creating a separate return fuel line to the tank from a T fitting added to the main fuel line right before the carb? This allows the excess pressure to return to the tank, and to keep the fuel temperature low by thermal exchange with the cooler fuel in the tank.
There is a local packard limousine company that constantly puts the return fuel line in their daily drivers; the mechanic referenced today's fuels being so drastically different from the fuels in the 1950's that it is required to reduce vapor lock.
Nothing more frustrating than having a perfectly running car dead at an intersection because of vapor lock.
One further question - was there originally a heat shield to deflect the heat from the exhaust manifold away from the mechanical fuel pump?
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