Black and oily spark plugs, adjust oil pump?

[colo-chinaman]

Hey there, just decided to change spark plugs.
Sled runs just fine, as far as I can tell anyway.
Plugs were pretty gummy looking with black sludge and all black where it should be whiteish
I have a reciept where the dealer turned up the oil pump "2mm" when installing fix kit, should I turn it back down?
I haven't run the calcs yet to determine current ratio

Thanks

 

[PaulAnd]

What is your oil ratio? Imo Ideal is close to 40:1 for a cfi4

 

[richracer1]

Check your oil pump alignment marks. I set mine just above factory specs as indicated by the pointer just above the horizontal line on the pic below.

 

[moose700rmk]

how are you running your ethanol plug? i had same thing, black gummy plugs. i plugged the ethanol wires together and it leaned it up apparently about 5% and now spark plugs are perfect brown color. just a thought

 

[blazer71]

how are you running your ethanol plug? i had same thing, black gummy plugs. i plugged the ethanol wires together and it leaned it up apparently about 5% and now spark plugs are perfect brown color. just a thought

What moose said and or check heat range of plug.