Spark Plug help

i have a 88 iroc i just put on a 200 shot anyone know the part number for a 4 stage colder spark plug and maybe a place i can buy them at? thanks

What's the total HP? I'm running a 300-shot on top of a 500HP 381 stroker, and use Champion S57YC gapped to 0.028". Unfortunately, they are way too cold for street use.

Try elitesparkplugs.com..... one of our board sponsors for Champion spark plugs.

I'll move this thread to "N2O Tech" forum.......

its stock so around 500

Why would you go 4 stages colder?

I think 4 ranges colder might be overkill. I was running close to 500hp at the wheels and was only running 1 range colder. Never had any problems. Something to consider.

Ken R.

I would think two stages colder would be enough.

i have a 88 iroc i just put on a 200 shot anyone know the part number for a 4 stage colder spark plug and maybe a place i can buy them at? thanks


send me pm and i can get you the plugs you need