CCS-1 Melling and Elgin E-293S are usually available on Ebay. They're also listed by Auto Zone, O'Reilly, and Advance Auto Parts. The Elgin cam is virtually a clone of the 261/Corvette cam- - - -same duration and lift, with a slightly different lash specification. The Melling cam has a little more exhaust duration than the Elgin cam. I'm currently building engines with both of those cams, but I don't have any dyno run figures yet. Depending on the current supply of new core cams for the manufacturers to grind, they're occasionally "out of stock". Putting a "long duration- - -high lift" cam in a stovebolt engine is a lost cause- - - - -the port shape and valve arrangement in the cylinder head makes it virtually impossible to get enough RPM and compression to take advantage of a radical cam. Take anything Clifford claims with a big grain of salt- - - - -the easiest way to make horsepower on paper instead of on a dyno is to lie about it!
Jerry
