Was thinking the same thing......or is it more like an air brush?OK, I'll bite, what's an air eraser? Looks like you might have fine grit blasted over a masked area? Anyway, looks good and a clever solution.
OK, I'll bite, what's an air eraser? Looks like you might have fine grit blasted over a masked area? Anyway, looks good and a clever solution.

How did you mask off the valve cover so nicely?