All excellent idea's and advice, and heres my 2cents....... I usually start with a can of GUNK (degreaser), both inside and out, usually using a plastic (non-scratching) stiff bristled brush for the tuff stuff and in between the lettering, then dry the hell out of it. Then start the initial cleaning with a SCOTCHBRITE PAD and some flowing water to keep any debris from clogging the pad, and there's a lot of it on your usual valve cover. By now, there should be the slightest shine coming through, and any apparent flaws can be sanded out w/ 250 Grit for the tough stuff and 400 Grit for the rest of the slight blemishes. After all the sanding and cleaning is done, I start w/ a tight knit spiral sewn buffing wheel for the general cut-in, and there's a lot of it. Tripoli buffing compound is great for this chore and you'll need a couple of sticks. Use a minimum of 1HP motor. And if your serious about doing alot of polishing both now and in the future, a 2HP motor w/ extended arms and a buffing pedestool, and dont forget the assortment of compounds. Now that you've cut most of the crap off the surface and your face looks 23 shades darker and your shirt is ruined. you have a great shine on the surface. BUT..... you're not done. Switch to a loose soft buffing pad and some white rouge, high luster compound. and do the same thing all over again. remember to move in a straight line from side to side whenever possible to keep swirls to a minimum. Using very hot water and dish detergent with a stiff toothbrush, you can remove the build-up of compound in the cracks and around the letteing. Use a soft cotton towel to wipe it down and dry it with. using another soft cotton towel you can start to buff out the remaining compound all over the surface and bring it to a final brilliant shine. Obviously I left out getting into the cracks and small areas with a smaller felt cone and smaller wheels made for such a thing but that will all become obvious when you start your first buffing project. Time and patience are the other items you won't find at the store but you'll learn em soon enough. I probably left out a few things but you get the general idea. Good luck, Dave.