I’m looking at the SM heads as well.. I was looking at that cam and the comp thumpr but.. Howard’s may be an option as well. I’d like to go to hydraulic roller. SM has a sale on the top end kit minus cam and lifters for 2200.. heads, rockers, and air gap style intake manifold. I have a 4 spd and an 8 3/4 to swap in first. That alone will pep it up over the 904 and 2.76 one legger that’s in it now..