Spx plenum porting

Discussion in 'Race 400/430/455' started by staged2ny, Dec 20, 2019.

  1. BrianTrick

    BrianTrick Brian Trick

    Some of these intakes can benefit from welding material on the outside,to get what you want on the inside. If you run any type of spacer,pin it to the intake,and do all of the work with it.

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