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I believe that balancer has a 28oz inbalance. I think Eric was reffering to one with a Zero inbalance.

On Eric's post #16 he has provided links to his recommendations.

Try Summit Balancer in first line and Ford 3 groove pulley in second.

The specs at first glance appear about same with same removable weights but damper is a different part number and has some differences so I would ask him if it would work. Pulley selection appears to be a slightly larger 2 groove version of his recommendation so if a single belt AC is all you're needing and bolt patterns match, would think it would work.

What kind of compressor are you using? I've been looking for a single narrow groove Sanden but none of AC places seem to carry anything single except wide belt. Couple of them said not made any more and to machine off extra groove. Sounds a bit extreme but does anyone have better info?

Don't use the first balancer in your link, as it's 28oz imbalance, and will tear your engine apart. You need a balancer that's for an internally balanced engine, like the one I posted in post #16.