Quote Originally Posted by Nixon View Post
**** AL606. He's GenV. He needs AL605 even on stock pulley
You want the hottest spark you can get away with...not the coldest...colder plugs might be better for "combating knock" but then you run into the issues of constant fouling/premature plug life, hard starts, misfires at idle or high RPM's, busted knuckles...blood loss, etc.