Is 11.5:1 ok for 93 octane? Apr 27, 2006 20:14:59 GMT -5 Quote Select PostDeselect PostLink to PostBack to Top Post by wordy777 on Apr 27, 2006 20:14:59 GMT -5 Im getting new pistons for my 6 inch eagle rods so i have to choose a compression ration, i think my proaction heads are 64 cc, is flattop ok for using 93 octane?
Is 11.5:1 ok for 93 octane? May 1, 2006 4:48:50 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Mike Stark on May 1, 2006 4:48:50 GMT -5 Iron heads and small cam NO!Aluminum heads and decent roller they would live.
