Spark Plugs

[JMF]

Any idea on what plugs I should get for my 383 V8 as i'm replacing them, pulled one out today and it's Champion RJ12YC so is it a case of getting the same ones? Cheers

[Chryco Psycho]

That is what I use in most of my big blocks gapped at .045  with a high output coil

[Nacho-RT74]

I can't find down here RJs... just Js and they are also becoming hard to find

[Charger-Bodie]

i recommend either 75 or 85 autolight plugs they work like the champians but seem to last longer