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Just installing my electric fuel pump. My question is, does a Holley blue pump have to be mounted straight up and down? It would fit best in my application if I could bolt it horizontally to the floor of my trunk. :yes:

The input/output fittings on the pump would work out best in this mounting approach. I was just unsure if it affects pump effectiveness if it was laid on it's side instead of straight up and down.

Thanks

John
 

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According to Holly, it needs to be mounted vertically. Otherwise, if it developes an internal leak the fuel goes into the motor and could go BOOM! The previous owner of my Elky had mounted a blue pump horizontically and it failed in less than 2,000 miles. Opened it up and sure enough the motor housing was full of gas.
 
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