The Aussie idler/tensioner pulley came with a regular socket head (Allen) bolt. It sticks out a lot, and hits the damper. You can replace it with a button head bolt for better clearance (but it still may not clear the damper). I mentioned this to the manufacturer, so they might be supplying the button head bolt now-a-days.

And the cam degree marks are labeled wrong. Moving it 2 deg on those marks changes the cam installed position by 4 crankshaft degrees ...