spark plugs

[eagledesigncorp]

does anyone have the ngk # for the plug to run with intake and exhaust mods
i know we all say the next one hotter but ngk web site says to actually run 1 colder with modifyed engins

[wolffie]

DCPR8E is the stock plug. just go to an auto parts store and tell them you want that plug number but a stage hotter or colder.

i THINK the stage hotter is DCPR7E but i cant remember for sure.

[eagledesigncorp]

thanks
NGK says that that plug is actually 1 "colder"
whick is what they recomend for a modified set-up to stop any detonation