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There was also an article on the testing of two PhaseIII '69 vettes, one blue and one yellow.In that article, Motion was offering PhaseIII packages , but in StageI thru StageVI levels of performance. In the end ,it was less confusing , to offer a standard total performance package to a specific engine plant as a point of reference as in PhaseIII 396,PhaseIII 427, PhaseIII L-88 etc. and add on from there.--Joe
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