I don't understand why it takes them 30 years to make an aluminum W2? Is that too much to ask for? Tweek the ports and chamber a little on a wet flow bench, give it w2 and std ex bolt patterns price them a little more than the RPM and watch em fly out the door. No need to start from scratch with raised ports shallower valve angles... they are gonna have to ask so much that they won't sell any (enough to justify there existence anyhow). All that means new pistons, new intakes, special gaskets, probably specific rockers... too much for the common guy to deal with.