454-502mpi mefi 1 modded fuel rail complete
06-12-2018, 01:00 PM
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454-502mpi mefi 1 modded fuel rail complete
#7 injector passage drilled out by Eddie Young also includes vortech adjustable fuel pressure regulator complete $125.00 shipped to your door.
06-14-2018, 08:39 PM
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MEFI 1 with the VST set up used that fuel rail with the fuel pressure regulator mounted on the front of the fuel rail. OEM stock Mercruiser used that set up. And yes number 7 fuel passage in the fuel rail always needs to be machined. Bad design from the get go
The VST was the first design for efi Mercruiser. At that time their was no cool fuel. OEM stock apps
The VST was the first design for efi Mercruiser. At that time their was no cool fuel. OEM stock apps
Last edited by BUP; 06-14-2018 at 08:42 PM.
06-15-2018, 04:19 PM
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What Bup said and the regulator is adjustable pressure and is at the end of the feed rail. it then bleeds off and the excess goes to the lower rail and went to the VST tank or like I had it straight back to the main fuel tank.
