the purple cam is the old grind .450/455 268/272 , I thought with the stamped rockers I may not even be getting a full 1.5 ratio and not seeing all of current cam. My exhaust is TTI 3/4 step headers into 3" TTI X pipe into dual 3" all the way out.
it is indeed the aluminum m1 dual plane. I'm starting to see a general consensus that my heads may be sub par, though I have heard that the 308's flow better than x, j heads. The engine was built by Barnes and Reece in NC. which I have heard is a reputable builder, however they may have just put the engine together how they were asked and may or may not of ported them.
