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What is the best compression ratio for street operation with pump gas?
The engines we build range from 9.5:1 to 11.6:1 for the 91 octane pump gas Street engines. Our Race series engines range up to 13.8:1 and run on C-14 race gas.
The engines we build range from 9.5:1 to 11.6:1 for the 91 octane pump gas Street engines. Our Race series engines range up to 13.8:1 and run on C-14 race gas. 
