[ERA Chas]

Originally Posted by 601HP

Just curious.......what's your opinion of the AR3924 with the cut-back ground? Do you see any advantage to it?

Thanks,
David

I tried all the ProStock-style tricks-trimmed electrode and indexed plugs in the chamber. You won't notice a difference except possibly on a dyno or .005 on a time slip. It doesn't hurt anything but nothing you'll notice on the street.