Join Date: Sep 1998
Location: Ontario, Canada
Re: Spark plug suggestion?
The NGK 3332 (XR5) equivalent to the AC Delco R43/R44 plug for the 70 Z28.
I've used this and it works well. I'm currently testing AC R43S since I live in the country and rarely drive city driving stop and go speed limits. I'm always 50+ mph.
Mark 70 Z28 M22 3.73 Z21 Z87 - Lunati 20120121 Roller Cam
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