So try them and see what you get. I don't see the point in all the "trick" plugs unless you have N2O or forced induction. Good ole copper works great and they are cheap.
yea thats what i say to im just trying to find a good heat rang also i thought the plugs i had in there wasnt the right ones for e7 heads but yea $9.53 wasnt bad for a set of plugs some people are paying $100