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56 Mercury Custom/312

Posted By Flaminroosta 10 Years Ago
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speedpro56
Posted 9 Years Ago
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Supercharged

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The electric fuel pumps are not as reliable as the mechanical ones from my experience. Been stranded twice with the electrics but never from the mechanical ones.


-Gary Burnette-


Flaminroosta
Posted 9 Years Ago
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Normally aspirated

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Last Active: 9 Years Ago
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Sounds like I will be going with a Carter fuel pump. I decided to go electric instead of stock in order to...

1. Eliminate any delay that would be caused by the mechanical pump priming.

2. The factory mechanical fuel pump looks cool, but to find an original one with a glass bowl under $200 is a challenge. The $45 re pop mechanical fuel pump looks like doo doo.

I figured a healthy alternative would be to cap off the fuel pump at the motor and place a quality inline fuel pump along the frame rail.

Plus... I like electricity.

Has anyone put that Robb MC 12 volt starter on a 312 before?

"What a waste of thumbs opposable, to build machines disposable." - A.D.
Chemist64
Posted 9 Years Ago
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Last Active: 9 Years Ago
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I went with the FE fuel pump and small Holley 4 barrel ( I think it was the 390). It runs great around town and on the highway, with no vapor lock. Drove it that way in the dry heat of Utah and humidity of SC.

It had an electric pump and the original dual mechanical when I got the car. The electric was right under the drivers door in the fuel line. It kept stalling while out on the drive. Apparently, the electric has to be right at the gas tank, best description is that they push better than pull. Someone told me they actually pull too good and create a void due to the line not keeping up with demand of the pump.

Also went with the Newport Engineering electric wiper motor, since the vacuum motor was just insufficient.




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