He does it the same way the swedes do and what many do in place of adjustable cam gears. You just remove the keyway, put the cams wherever you want and lock them down to 50 ft-lbs with lock tight on the bolt.
I ran my enem cams this way for 2 months before putting on the maptun cam gears, or speed parts. The stock cam gears are much easier to work with and much easier to adjust.
I had a hell of a time getting the speed parts adjustable cam gears to line up right and stay there while you tightened the 6 allen bolts and main cam gear bolt down. Took my 6 hours in all
The stock cam gears with removed key-way took me about 2 hours to get dialed in and perfect when it was all tight.