I was taking the heads apart to clean them and found 2 more tight exhaust valves with the same galling. I talked to my engine builder buddy and he thinks that the cheap valves I bought for it weren't hardened properly. So, now I'm looking for a set of SS valves. He also talked me into porting the bowls while they are apart. They will be getting 2.08 intakes but the bigger 1.74 exhaust valves.