Head mod

Discussion in 'Engine/ Performance' started by Trazy2017, Jun 25, 2017.

  1. Trazy2017

    Trazy2017 Junior Member

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    I brought my 2.2 to machineshop, they milled head. Compression to 10.0:1, polished ports, radiused first inch into port, then polished inaide of tb. Gasket match intake and exhaust ports. Makes a difference, but need 91octane only.
     

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