My Dart Swinger Project!

Looking better as you go. Are you using a dremel? If so, get a buffer. They are at Walmart or anyplace else that sells that stuff. Don't buff the intake, only the exhaust. Take your time, and remember, you are thinking "exit on the exhaust" or air being FORCED out in a hurry. On the intake, remember it's inhaling from the head of the valve.
Yea im using a dremel i have to get some more stones and sanding rolls! I will grab a buffer wheel while im there