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Old 08-13-2010, 09:44 PM
whathaveigotinto whathaveigotinto is offline
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I originally thought my heads had around 72 cc chambers they are phaseII bowties ive learned they hace 64 cc chambers but mine have been milled so they may be less than 60 cc now an i prolly have around 11 to 1 instead of the 9 to 1 i thought i had, i run 93 octane and have never noticed any spark knock i find that hard to believe with steel heads an 11 to 1, i run 36 degree total timing ,maybe my pointers way off ? ,How noticeable is detonation in a loud car turnin 6000 ? next time at the track would it be safe to bump my timing up a lil at a time till until i notice somthing or slow down an not worry about messin somthin up ?
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