Tahiti Owner:
I am running a Holley 800 double pumper carb on my olds 455, she runs pretty good i'd have to say, but towards the end of the day she starts to smoke. I have pulled the spark plugs and they are not brown like they are supposed to be, they are black and look kinda wet. Im guessing it is getting too much fuel. My question is this does anyone know what the stock settings should be? and what suggestions do you have for coming up with the right setting?
Thanks GuysSend me your list number on the air horn of the carburetor and I can give you the "stock" settings. Or any number you can grab off the carburetor.
Smoke, black plugs, etc....running a little rich it sounds...
Drop the rear jets 3 sizes, and then drop 2 sizes at a time after that until its corrected. Drop the front ones by 2 everytime then up one when its good.
Is your pwr valve/s good? You might have torn diaphragm in the valve itself and its just dumping fuel in your motor.
Hmmmm...You might want to take apart that carb to check out its conditions. Wet spark plugs mean too much fuel! Correct that issue first, then work the too rich issue. Even when your over rich, they shouln't be wet.
-Ty