I have a full fendered 1928 CC Pickup that I finished doing an AV8 conversion on this spring. I bought the 8BA engine as an assembly locally with a 3/8 Potvin cam, headers, Offy heads and dual carb intake. I pulled the heads to clean it up before installing it in the truck and noticed 2 things. First, it is only a .030" overbore and second, it still has the Ford script valves in it. Overall the truck runs great , stays steady at 180 degrees, even in the Hot Texas summer!! I do have a little bit of valve train noise and I am getting a lot of blow by out of the breather. It is consuming about a quart of oil every 300 miles. So, I believe a full overhaul is in order. I know the block is good, no cracks, not losing coolant and not overheating. What is the best combination of bore, stroke and valve size to work with my truck? Should I stay with the Potvin 3/8 cam or go to the Isky 400 Jr? My heads are stamped .400. I do want it to continue to run cool!! I was thinking of going to an 1/8" overbore and a 4.25" crank with 1.6" valves. Too much for a strong street motor? What else should I consider? Or, should I just rebuild it with the stock 3.75" crank? Money is not the limiting factor, but I do not want to spend a bunch for no real gain either.