Nice work! That's got to be the TB from your Mustang.

What did you have done to the butterfly shaft? The butterfly looks totally different on the after shot. Lower profile. :drool: Did you have that one bored and the butterfly replaced? My TB shaft takes up 78 square mm of the intake. I was thinking about shaving it down... but yours doesn't even appear to have a shaft anymore. What gives?

In some cases (and only from SOME manufacturers) when throttle bodies are made, the butterfly doesn't seal properly around the edges because they were like a thousandth of an inch off somewhere. So the manufacturer uses solder to fill the cracks. If you see this on your throttle body (it sometimes looks like corrosion) DON'T try to polish that off of the mating surface where the valve seals. You can end up with a high idle if you do. I have a picture of one with the solder on it somewhere... A machinist warned me about it.

Thanks for the tip about the jewler's rouge. Many of the automotive rouges have carnuba waxes in them. Maybe a jewler's rouge doesn't. I was thinking about using ZOOP seal when I finish, and wax would probably prevent the ZOOP seal from sticking. That stuff is mad expensive, too. Check it out. www.zoopseal.com