Jim,

I happen to have one that I didn't use. I found out that after head milling, the cam gets retarded, some six degrees. About what I wanted anyway...the reason for buying the sprocket.

I have one with multi keyways broached in it with indexing. It is not the two piece unit that can be adjusted without loosening the tension on the cam belt.

As Manny stated, many outlets have them. If I can find it, I would offer to sell it. If interested, respond!! When you use this unit, you have to pretty much degree the cam to confirm the timing. The indexing is relative to the cam only.

Your choice.

Bill