Hey folks, While researching plugs for a nitrous application I've found a lot of good information and thought I share.

NGK part number break down

http://www.ngksparkplugs.com/techinf...tnumberkey.pdf

NGK tech info

http://www.ngksparkplugs.com/techinf...000&country=US

Really good spark plug info

http://www.centuryperformance.com/sp...ch-spg-26.html

AC Delco spark plug identification table

http://www.acdelco.com/parts/sparkpl...tification.jsp

Club plug- lots of good plug info

http://www.clubplug.net/

Autolite FAQ

http://www.autolitesparkplugs.com/faqmain.asp

Autolite 411

http://www.autolitesparkplugs.com/sparkplug411.asp

Autolite advanced tuner section – lots of good info and search feature

http://www.autolitesparkplugs.com/se...nufacturerID=5

Have fun!