You need to check your lambdas to see how rich you're actually running. If you have a lot of advance then you need more fuel to help keep detonation in check. If the advance is too far though, you won't get proper combustion and this could show up as a rich condition as well.
FWIW, I had their 3071 tune and it ran rich also. Providing all of your hardware is sorted, contacting them might be a good idea to make sure your engine is running right/safe.
FWIW, I had their 3071 tune and it ran rich also. Providing all of your hardware is sorted, contacting them might be a good idea to make sure your engine is running right/safe.