ive been using Auto Light spark plugs the AR3910X and did the job for use last year got the RPMs where we wanted them to be. And got to looking at the E3 plugs, and was looking at the end of it and thougth it would burn a better has any one did testing on this? i think there were posts about this but didnt look hard enough i guess. and whats the max temp. on the E3's
