Going to be adding on a nitrous system on my truck and wanted to see what spark plugs you guys have used... Iridium plugs are not the best and platinum is a no no. Only plugs I have cross referenced them with is the Bosch Iriduim 9611, with a heat range of 8. Kinda cold on the heat range looking for more of a 7 heat range. I'm used to NGK copper plugs for use with nitrous on my full-size so just curious what you guys have used? Does NGK make a similar plug? Only one I have seen is the NGK G plug 5019 but think there platinum as well as the same heat range.