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Mike Barton degreed-in the roller cam for us. A camshaft can't perform properly unless it's been degreed according to the cam card. Naturally, we could have advanced or retarded the cam to move the power curve around, but we didn't in order to have a fair comparison. The same RBRE 3-bolt steel billet timing set was used for both cams. Mike also observed the gross lift to check the cam lift and rocker geometry, which were right on.