georgie Posted March 26, 2010 Report Posted March 26, 2010 I changed out my cool head domes to 19cc and got 180psi compression. It's a stock stroke cub motor with 65mm weisco pistons. What octane would be safe? Thanks. Quote
firebanshee Posted March 26, 2010 Report Posted March 26, 2010 I changed out my cool head domes to 19cc and got 180psi compression. It's a stock stroke cub motor with 65mm weisco pistons. What octane would be safe? Thanks. 110 race gas Quote
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