I have the pertronix unit on my 59 powered with a 69 292 I6. Its a pretty easy install. You just pull out the points and install this small black box thingy with a magnet ring on the distributor shaft. Set the timing once and that's it. I have had it going for 2 years and it was an immediate performance improvement. You do have to set the timing. No more points gap or dwell setting.

\'59 Chevy 1-ton
'72 c-10 (in progress)
The Great Rust(less) Mountain
\'47 Jeep cj2a