Heads

I would pass too.... The exh valves are smaller "unless someone had work done to them" as someone already mentioned. Additionaly, I would pass on just about ANY cast iron head if I were in the market to buy a set of heads! The price to re-valve, clean magnaflux, valve job itself, labor rates, etc etc I would just get a set of assembled aluminum heads. They will most likely perform better out of the box than a warmed over set of cast iron heads anyhow!
Just my 2 cents.