This is to answer Clem's last question:

Buy a stock coil if you plan to use points.

Optima batteries have had a reliability problem in the past. I hope that this has been resolved by now.

You said "new cables" then "resurfaced frame".
If you are talking about battery cables make sure you have at minimum 2/0 gauge (also called 00 AWG) pure copper (not copper clad) cables for your 6 volt system.

"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."