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Originally Posted by jimvette59
H I I have a 94 carb on a 255 merc stock engine and feel it's running to rich. I'd like to know the proper size jets. I think 54's are in there. Thanks Jim T.
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I would make sure the power valve isn't leaking or ruptured before you start changing main jets. Over the years Holley 94 jet sizes varied from about #50 to #57 depending on the year and if car or truck.
The main discharge nozzle bars were changed over the years. Three different styles that I can think of.
Sal