my 2 cents
Living here at altitude 5280 ft. and going to the high country...8-10-12,000 ft.
fairly often I can say that with factory jetting I never have a problem with stumbling/missing or sooty plugs ... A loss of power YES .
.I do have pods and headers on three of my 11's and all run very well from the bottom end to redline ..
Don't know if you run altered jetting or no...dirty air filter ..old plugs ?
Just tossing out the obvious often overlooked...
Living here at altitude 5280 ft. and going to the high country...8-10-12,000 ft.
fairly often I can say that with factory jetting I never have a problem with stumbling/missing or sooty plugs ... A loss of power YES .
.I do have pods and headers on three of my 11's and all run very well from the bottom end to redline ..
Don't know if you run altered jetting or no...dirty air filter ..old plugs ?
Just tossing out the obvious often overlooked...
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