I agree with you Les, both times the O cork rings have come apart after torquing. I like the shim washer idea.

I only have a 62mm sc pulley right now but am already used to the added gains. I think I will end up like some others including you Steve and stack. But for now, that's good to know.

Also, is center out considered center of the car/engine out to the wheels or center of the intake manifold out towards the front and back?