I upgraded my 2005 FLHTI. My buddy and I installed new cams (Andrews 21G), 95ci pistons (Screaming Eagle & Screaming Eagle gaskets), and a power commander (downloaded close map to match my set up). Had the cylinders bored to match the pistons and the heads cleaned and new seals installed. Everything else was left stock. All was good for the first 500 miles. Now I’m getting white smoke coming out of the exhaust at cold start-up. It last for a about 30 seconds and then goes away. Too much smoke to be condensation. Everything else is okay, no funny smells, bad noise, or bad throttle response. Does anybody have any idea? Maybe bad valve stem seals on the heads?