This is such a great product and well worth the sheckles. Ignition belongs on the crank, not the (hot as hell, driven by a slap happy chain) camshaft! I put one on my 277 and has worked flawless for 2 years now. Did a couple of heavy rain days last summer as well.
Only thing that was tough was finding graceful homes for all the components, but I wouldn't use anything else on a 360 engine.
IMHO, the cheapo points eliminating cam mounted ignitions just get too hot and eventually fry. On my 277 I put in a hidden switch that eliminates the relay just in case I have a battery or wiring short, blown fuse in the lighting circuits...I can flip that switch, kick it over and down the road we go like an old dirt bike!
600 snots for dead reliable charging and ignition and the ability to eliminate those drippy cam end seals is well worth the money...again, IMHO.