Fuel pressure
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New User
Joined: Jun 2004
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Fuel pressure
Hi all, I am in the process of installing a '87 4.9 EFI into my '84 F150 and I am trying to figure out my fuel issues. I need to know if someone can tell me how much fuel pressure the EFI requires. I can't come up with a intank pump like the '87 use without changing out the tank and that gets expensive. I am trying to solve my problem with an external pump.
Thanks
Scott
Thanks
Scott
Elder User
Joined: Jan 2007
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Just checked on the Jegs website,, they have the Holley BlueMax which will work real well with your setup for $136, it's a relatively easy install if you're somewhat handy and will mount right inside the framerail. I switched to an external after both pumps went bad in both my tanks and the new pump I bought for the front tank went bad after about 2 months. No problems now and works great.
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New User
Joined: Jun 2004
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Ok, what about the return line, is there a restrictor of some kind or is it just an open line? I assume there is a restrictor but I am hoping it is in the fuel rail.
Thanks
Scott
Thanks
Scott
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