B3 Racing Engines Geometry Kit

LOL! I get what you see!
It is a cross between the marker lines, not straight across and not fully covering the tip in a solid black color with the valve tips natural color poking through.

Funny how I seen it until you posted it looked wrecked. Like two pictures in one. Optical illusion!

I don't have anything around here that would mark well with the checker springs. If it was the valve springs then it would rub off. If I put to much sharpie on the valve tip then it wouldn't rub off at all. :BangHead:

I would, but Marland beat me to it in the OP.
:D

:D