I've been prepping my '72 Skylark 350-4 motor for painting (motor still in engine bay) and so far I've used simple green and Gunk foaming degreaser. The motor is look much better put i still have more work to do. I'm wondering what's the best way to get the last bits of grease off, and what do I need to do for final prep before painting? I plan to use engine spay paint. I'm thinking just more hard work and a final wipe down with some paint thinner to remove any residue then mask and spay? I'm going to install new valve cover gaskets so I'm thinking to do the final valve cover clean up off the motor then reinstall and paint them when I paint the rest of the engine. Does that sound right?