I am thinking off making longbolts for 77/78 carbs, to enable quicker bowl removal on the bike. These would be made of 5/16 hex aluminum, with the same threads as stock (steel insert) on the bowl end to hold bowl on. The hex would protrude approx 3/8 inch past bowl to enable easy wrench access.
Let me know if you are interested, I will work out a price.
Also thinking of spinning up some smooth oil filter housings out of stock ones, let me know if there is any interest. The major work on these is removing the fins..