Ken,I recently had a similar issue with a Melling SPC-8(041) cam.We were degreeing the cam with Cam Logic equipment and also checking the cam specs.The lobe lift was just as advertised .313 but the intake and exhaust durations were not as advertised.We then picked up a second new Melling SPC-8 and the readings were the same as the first one.I then called Melling tech and told them about the issue.They stated that I could mail them the cam and they would check it.I never did send it though.It was my understanding that CMC(Camshaft Machine Company) in Jackson,Michigan ground most if not all of the flat tappet cams be it Melling,Comp,Edelbrock etc.Both of the Mellings had CWC(CMC upside down on them) stamped on them.
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2001 Trans Am,WS6 Sunset Orange Metallic (sold)
1973 Trans Am 455,4speed
1970 GTO
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