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Plus Man 07-31-2020 07:08 PM
454 mag mpi issues at wot
 
I have a 454mag efi with procharger . This season it is missing and wont pull rpm past 4500 . I changed wires plugs distributor rotor fuel filter but still runs like **** past 3/4 throttle. Runs fine every where else.
any ideas ???

Trash 08-01-2020 06:46 PM
Originally Posted by Plus Man (Post 4750896)
I have a 454mag efi with procharger . This season it is missing and wont pull rpm past 4500 . I changed wires plugs distributor rotor fuel filter but still runs like **** past 3/4 throttle. Runs fine every where else.
any ideas ???
It is likely running lean. Fuel delivery issue could be the injectors, regulator etc.


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