Pertronix rtr distributor vs. ignitor III

Cudavert,

I also would be concerned about using the distributor cam for Hall sensing. There are a few things wrong with that.
1. A good trigger needs a target with a sharp transition. A cam profile is just the opposite.
2. The target should be anealed, low carbon steel. Cams are surface hardened high carbon.
3. The small diameter results in inherent timing errors, in conjunction with slop and mechanical tolerance.