This is my first time trying to take a brushed aluminum intake manifold and polishing it. I sanded with 80, 240 and then 320. I just did the back half with the tripoli and I’m getting scared because parts of it (actually most of it) still show some scratches. I’m using an electric drill that spins at 3600 rpms. Can anyone post up a picture of their manifold? I want to see how far I’m off and I really don’t care if I have to start over I just want to do it right. Thanks!