I took the exhaust off and decided to look at my exhaust valves, do you think I should tear into the head and see what the intake valves look like as well? Or does this look like an acceptable amount of carbon? I'll definitely be running a richer map from now on.
Front:

Rear:

Also remember to change out your bag filters!

Does any one have a spare rear cylinder exhaust tube? The short one that connects to the headers, mine snapped at the flange when pulling the headers off.