Why would 1 side burn rich and the other side lean? I noticed on my transom a thick black soot on the right side and the left side was clean. I have through transome exhaust so its really visible. I pulled the plugs and all the plugs on the left side were lean and the right side plugs were black. 2 850 Holley DP on a 6/71 driven 8% under. I'm jetted 96 primary and 98 secondaries. Running 32° at the dizzy locked out. Burning Av Gas. I was at 94 primary and 96 secondaries. when I noticed the transom, I re jetted up after I saw the transom but it didn't make a difference.
Pyro was at 1250° at 3500 to 5000 rpms and stayed pretty constant. That was on the lean side, # 1 piston.
Anyone ever deal with this kind of situation?