All true , but I like to quench them all. I ran a 426 hemi for 14 yrs with the pistons kissing the heads just enough to keep the carbon cleaned off at 6500 rpm, Tom Hoover said it was just right . Works for me , I have .039 on my 505, and have been running 91 octane , but have since found 93 , 3 miles from my house.
Strangely enough the new "kum and go" convenience store is right beside a new dodge dealer ship that sells hellcats, wondering if the dealership had anything to do with the 93 being sold there. First 93 I`ve ran across around here .
