ran 1 tank, 11.5 comp.ratio heads milled .030, drove right out on airport runway with flashers on,took about 6 seconds to fill it up,car ran great,fast, no more pinging, but at $3.00 a gal,went back to pump prem.(this was my daily driver)..060 over 389 tri.
thought I was wrong once.......but I was mistakin