[Bebbetufs]

^ +1. Shave as little as possible off the boss. I have had to reinstall the original pulley to adjust the cam timing. It would be an even greater hassle without the boss.

I got a mate to lock the flywheel with a large and strong screwdriver. There are some gaps between the bellhousing and the block where this can be done. Make sure you know which way it will spin when you tighten. That way I was able to properly torque the bolt without the engine turning over.