A couple tweaks:
Replaced the S&H filters with K&N filters. I doubt they will make much difference but they are about 1/4 inch taller so that works out about 6.4 square inches more filter surface area each. Woo woo! My rear acorn nut was clearing by about 3/8 inch initially but I realized today that the nut was bottoming out on the stud. I picked up another 1/8 inch of so by readjusting so clearances are good.
Also ordered a pair of vacuum secondary covers set up for linked vacuum.
The next item ERA Chas will approve of. Fabricated an accelerator return spring bracket out of aluminum channel and got a couple new springs from Summit. Looks much better now.