i have run pertronix in several 911 engines including race motors, MGB race car, Manx buggy, and several more cars for over 20 yrs - 7000-7500 rpm on the race motors
- variously connected to std oem, MSD & permatune ign systems
never had a problem
if one is totally paranoid about it - carry a set of new points & condenser in your glove box
( such as - i carry an extra HEI ign module for my '84 GM truck HEI cuz i've had a couple of those fail on the road over 30 yrs - Ford Duraspark modules are also known to fail - so if paranoia is your thing - carry modules for every car you own)
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"... I am German, and if it has no logic it's meaningless."
914 & 914-6 parts FS 03-2021 
www.tinyurl.com/2pmpmv8y
911 parts FS 2022

https://tinyurl.com/911-Parts-FS-LCM