[Healeys] Positive to negative gnd---Pertronix question

[Tom Felts]

OK---thinking strongly of converting my late BJ8 to negative earth.  I know the steps-------but-------not sure about the Pertronix.  I have been using Pertronix under positive ground conditions for a long time.

When I convert to neg gnd, must I change Pertronix to a neg gnd one, or is it OK to continue to use the one in the car now that was operating under pos gnd conditions?

Thanks for any advice.

tom