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Prep is the big "X" in the equation, valve job, inside turn on the intake, pushrod pinch

October 6 2017 at 3:07 PM
Bill Ballinger  (Login 65billgal)

Response to c6ae-r is calld a Transition Head

any number of things can knock a comparison into an apple/orange comparison. The C8s are smoggers and they do well mostly by making heat. The C4s are likely to be corroded from lead exposure and they really have to be cleaned, which BTW requires some breathing protection.

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