larryw posted:I have found that 4300 carb air cleaner bases do not want to sit properly on a 4150 Holley or Demon. Rocks on the float adjustment screw. Might fit ok on a 4160.
I've found the same thing.
Also, the color blue on this air cleaner matches the original blue on my engine. I believe it's available as Ford or Mercury Dark Blue engine enamel.