Eric,

Thanks for the thoughts. I'm going to look on their site again to see if I can find the exact gap required for the module and magnet. I can't find my old instruction sheet. All of the wire connections are tight.I'm not sure I understand what you mean by phasing in the optical trigger.

I may have misstated what I did with the distributor. I bought a new (stock) one and added the pertronixs to it, so I don't think any adjustment to it is possible. I bought new plug wires, but they were made to look like the originals female ends at distributor, black, etc. and may not be sufficient. I'll have to re-search that to see where I bought them, although I thought they were capable of handling HEI.

Some more things to think about, but certainly worth a try.

Thanks again!