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-   -   How do you chose what spark plug to use? (http://forums.pelicanparts.com/porsche-911-technical-forum/1144414-how-do-you-chose-what-spark-plug-use.html)

rwest 08-07-2023 01:56 PM

How do you chose what spark plug to use?
 
My 1977 is slightly modified:

It has Mahle RS P/Cs, SC cams, PMO EFI and EDIS ignition.

Currently I have Denso W22EPR-U which should be a factory spec plug.

Since my setup is now different, how would I know if that plug is still a good choice or which plugs may be better?

Thanks.


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