cold plugs...

[mityaz]

any suggestions on what kind of a cold plug i should use for a 50-75hp wet nitrous for 99 tour? nkg zr6?? champion copper core...?

[Tourige]

NGK TR6

10motherfugginchars..

[allstyle12]

NGK TR6

10motherfugginchars..

I concur. You should have no drivability issues with them, as long as it's not too cold.

[DemonSVT]

Stock heat range plugs for any shot under the 75HP range. NGK or Autolite are brand good choices.

If you want to run a larger shot then put in 1 step colder. However take them out when you are down running it. They noticeably drop the efficiency of the engine in any weather. In cold weather they are just horrible about it.