Just wanted to post steps involved in doing a valve cover with different colored lettering in case someone needed help in understanding how to do one.
First, cover the lettering with masking tape, then with a razor blade or exacto knife, cut around the lettering exposing them.
Next, mask off all other exposed areas of the cover.
Spray the color that you want your lettering to be.
The next step requires close supervision. Next you have to heat the cover until the powder just starts to melt but not fully flowed out. It should look like the picture below. It’s important not to let it get too hot so the tape won’t leave adhesive on the surface.