Thread: 1937 Plymouth 5 Window Coupe

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Originally Posted by jerry clayton

Nothing wrong with a double pumper if they are big enough to run in the primaries and sec come in late---------there are also some high cfm vac sec carbs now that work nice-----

Jerry, you must not have had your coffee yet when you wrote this. When you step on the loud pedal with a double pumper, you get all 4 bores balls to the wall at one time (there ain't no secondaries comin' in late) and if there are insufficient revs at that point, the motor will load up and nose over, that's why the minimum 3K converter. And this chap needs another 500 rpm (3500 stall minimum) to get up on the cam.

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Originally Posted by techinspector1

Jerry, you must not have had your coffee yet when you wrote this. When you step on the loud pedal with a double pumper, you get all 4 bores balls to the wall at one time (there ain't no secondaries comin' in late) and if there are insufficient revs at that point, the motor will load up and nose over, that's why the minimum 3K converter. And this chap needs another 500 rpm (3500 stall minimum) to get up on the cam.

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I also have not purchased the carb yet. The one I listed is what was recommended by the people who gave me the original plan/parts list. What would be the best/most suitable application for me?

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