I have a Mallory UniLite distributor and I believe it uses the .491 ?
Second question is, I have been using the bronze gears in my BBC hydraulic roller cam and see that Summit sells a Composite carbon gear. Is it worth using this or should I stick with a bronze gear ?
Thanks for both answers.

Here is a link to what I think I need
http://store.summitracing.com/partdetail.asp?part=CCA%2D12200&autoview=sku

Thanks