Cubic inch/Tune up help

Discussion in 'PSI Superchargers Tech Questions' started by Danny Humphreys, Dec 30, 2003.

  1. Danny Humphreys

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    Given all else is the same, how much difference would there be in tune up between a 540 inch and a 557 inch motor? I am building a spare motor and want to be able to use basically the same combo fuel system wise. Computer says about 17 on the main. Any one????
     
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