Quote:
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Originally Posted by Tim Corcoran
You need to lower your compression to 10:1 or lower for 91 octane. Easiest way is to change cylinder heads.
Tim C
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Hi Tim Corcoran
I committed the mistake of buying cilinder head with combustion chambers of 72 cc, the correct thing would have to be of 82 cc.
I buy custom pistons Forged Type top dish with compression ratio of 11:1 with Gasket thickness of 45mm.