Stubborn starting question...

What's the best conversion kit out there?
Search "ready-to-run distributor" on ebay and here. I bought one from skip white performance for $45 a few years ago (small block), plus his $20 e-core coil. Several other sellers. Mostly good reviews in posts here. Just a few wires to hookup since the module is integral to the distributor. Some fuss about buying anything made in China, but they appear well-made and the price is fantastic. Only problem, they don't make a slant 6 version.

Alternatives that use your existing points distributor are Pertronix Ignitor (II or III, $100 or $120) or Crane Cams XR700. The later is outdated (requires ballast), but you can sometimes get for $20 on ebay. You can also buy a HEI parts from TrailBeast here ($99) but must also get an electronic distributor (72+). Others like MSD or DUI costs $300+, and more for racing.