what spark plugs to use

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I'm just stirring the pot. E3 always end up in which plug to use.:poke:Lol
 
I have tried almost every brand of spark plugs in my mopars. I can’t really say there is a difference either way. And yes I’ve used hundreds of Champions. Kim
 
oldkimmer said:
I have tried almost every brand of spark plugs in my mopars. I can’t really say there is a difference either way. And yes I’ve used hundreds of Champions. Kim
Click to expand...


Correct. The biggest deal is heat range and tip style. After that, the Champion is by FAR the easiest to read. Small changes show up quicker and are easier to see. I can tune with any plug, except those with a black shell. The Champion is by far the easiest to read, and the easiest to get to light with a weak ignition.
 
oldkimmer said:
I have tried almost every brand of spark plugs in my mopars. I can’t really say there is a difference either way. And yes I’ve used hundreds of Champions. Kim
Click to expand...

I used to have a small sponser that furnished my plugs never had a problem w/ champions / back then .
n64`s in a s/s type hemi , was actually recommended by Chrysler at the time.
 
IMHO best series of plugs for lower compression LA
you can find in NGK if you really want to
RC12LYC Autolite 3895 985
RCN12LYC #412 5/8 hex
4412 Truck plug 5/8 hex
3034 Platinum
RN13LYC/RN13LYC5 #101/817 13/16 hex Autolight 3885
RFN14LYC hotter #82 5/8
If higher compression or High compression 340 read the plugs and check for interference with piston
 
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