Info Needed !!

If you are building that gasser engine, that is going to rev to the moon, then I would personally not add that part. It is there to stabilize timing, by putting pressure on the chain on the slack side, but when you get the revs way up, and the chain is really flying, it might be more prone to break. A very few reports are out there of them breaking.

I'd be putting my money into a geared timing set for that gasser. More stable and durable than a chain.