What spark plug for my application?
gm hotcam
ls6 intake
5.3 ported polished heads
cai
shorty headers
x-pipe
catback exhuast
and all the regular bolt ons such as throttle body bypass, smooth bellow, pp tb and maf. 180 thermostat.
I tried running the tr6ix but switched to a tr55 just plain copper.
I know this has been asked many of times and i have read thru them. Just wanting to know a few opinions to my specific setup.
motor is an 00 ls1 in a c5.
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