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Gene N.
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-- 12-02-2010 @ 5:24 PM
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34 has 12v system with Bendix electric fuel pump 5 to 9 lb pressure ? should I stay with it when installing a 59AB engine or go with manual pump on 59AB also should I use a restrictor to lower pressure to 3 1/2 lbs. if I stay with electric pump
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40 Coupe
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-- 12-03-2010 @ 5:42 AM
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It depends. If your going to use the 97 carb. vintage speed sells new floats that can accept the higher fuel pressure. if your not going to use the new float then a pressure regulator (not a restrictor) is necessary. 3 1/2# is the top end, 1 1/2 is the low, maybe more like 2#. If you don`t want to go this route then go to a mechanical pump, they have worked well for eons.
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supereal
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-- 12-03-2010 @ 8:23 AM
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I'd go with the stock mechanical pump, and use the electric for priming only after a long period of sitting to reduce cranking time. Anything over 3-4 lbs fuel pressure will overwhelm the float needle. I don't like fuel pressure regulators. They tend to be erratic.
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