Quote Originally Posted by taslucas View Post
A mate just fitted the pertronix ignitor 2 hall effect along with the flamethrower2 coil (45,000 volts, 0.6 ohms resistance). He reckons it drives way better. I'm just about to order one for me. Check out rusty nails diy thread, he shows how he fitted a pertronix ignitor 1. Lobe sensing (while keeping the factory coil).
The points are removed for the lobe sensing version. I think it uses a magnet to sense everytime the lobes go past (instead of the lobes mechanicaly moving the points open). The hall effect one uses a magnetic ring that slides over the lobes and gives a better signal to the module. The only reason you need to machine the shaft is so the magnetic ring fits over the little step that the rotor button sits on...

Tap, crackle, pop
Just to add a bit to the above quoted post, its dead easy to remove & refit the top shaft that needs the step knocked off from the distributor without removing the entire dizzy. no more skill is required than whats needed to fit the Pertornix in the first place.

I took mine into the local machine shop & they machined it off for under $20 clams.... Problem solved.