Updated ignition system

[aussie.porsche]

Can anyone help,
I have installed a CDI Ignition unit into a 1970 Porsche 911 and left the existing
Bosch coil in place. Should the coil be upgraded to support the new ignition system?

[Flojo]

you should have a black Bosch 0221121001 and 0221121006
or optional MSD Blaster HV 8222

[dfhtrhjn]

You should consider an MSD ignition unit since they product dual spark and can rev limit. You should also consider the Pertronix magnetic pickup as a drop in points replacement. You'll notice a significant improvement in cold starts and general smoothness.

[spyerx]

I have:
Partsklassic coil
Partsklassic digital cdi with rpm cutoff
Pertronix electronic ignition.

I believe a 70 should have had cdi? If not you want a coil designed for cdi. Ditch the points.

[aussie.porsche]

Thanks for all the help, much appreciated