I have a 64 Valiant 225 3speed manual with A/C. My new head is just about done at the machine shop. Its been heavily ported, 1.70intake 1.44exhaust valves, combustion chambers opened around the valves, milled to give a compression ratio of 9.5 to 1, and lots of different coatings This thing will flow alot more air. The bottom end is stock bore. It will be receiving a offy 4bbl and holley 8007 390cfm carb. Stock exhaust manifold to 2.25 tubing back. I am considering the erson 280 cam. I would like a cam that makes some good torque but I need to keep my A/C living in AZ. Will the 280 be a good choice?