273 commando HELP!!!

I didn't have a lot of this kind of information available when I rebuilt my Commando back in the 80s. I wound up with a Crower hydraulic cam, very similar in spec to the stock mechanical cam. If I did it again I'd go back to solid for the sound, if nothing else.

Nobody has mentioned heads, for the reason that there isn't much to do about them besides gasket match, as mentioned. 318 heads wouldn't be an improvement, and big valve heads would just kill the responsiveness that makes this engine so cool.

What I have been thinking about recently is that the 273 has the lightest rods and pistons of the LAs (presumably), but has those hunkin' massive wristpins. I was pondering if you drilled them out to a more reasonable wall thickness, they would still be plenty strong for a 250hp motor, and you could shave a little off the crank, for even less rotating mass (balancing the whole assembly, of course). Then it should really respond. Crazy idea?