Fuel rail mod.
#1
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Fuel rail mod.
What shops do the fuel rail mod? This is the old style 502 mag with the small supply hole on #7. For 500 - 550 hp is this the only change that needs done to the fuel rail?
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Send ( Articfriends ) Smitty a pm, he's done several mod's the mpi intakes.......
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A good local hot rod machine shop can do the hole mod. At least 20 years ago that's what I use to do, send that fuel rail to the local machine shop.
Just adding info about fuel rails in general ----- for fuel rail feed hole location -- it is best to have all injector top feed holes -- not side hole feeds. That side feed hole is really poor engineering to begin with and then to make it 1/4 of the size is even really poor on top of poor.
Just adding info about fuel rails in general ----- for fuel rail feed hole location -- it is best to have all injector top feed holes -- not side hole feeds. That side feed hole is really poor engineering to begin with and then to make it 1/4 of the size is even really poor on top of poor.
Last edited by BUP; 12-15-2019 at 11:08 PM.
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I had Eddie Young mod mine. He does a lot more to the rails then just that one small hole. My rail feeds from both ends and is drilled between the top and bottom and the regulator is blocked off and you use a remote mount regulator also the rail is highly modded on the back of it.
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