[Chuck Moreland]

I will check the pump part number tomorrow. The car was converted to webers before I bought it.

I can't get the car to run consistantly at idle/low rpm. It will be great for awhile (minutes), then for no reason start spitting and missing badly. Then suddenly it runs great.

The problem is most severe when lifting (medium RPM, high vacum).

The car runs like all hell under load and higher RPM. It's just the trolling around town that is a problem.

I've replaced most everything in the ignition, except the distributor. And the distributor isn't very old. Centrifugal advance seems to work fine.

I've rebuilt the carbs, replaced the fuel filter and adjusted carbs till I turn blue.

So I'm scratching my head trying to figure out what would cause the changing behaviour. The carb shafts and throttle plates don't seem to be too badly worn. I can't find any vacum leaks.

So I'm suspecting fuel pressure.