Here is a dyno chart I had squrrled away.
89 Zilla, Eddy Current Dyno, 2006 test, 73 degrees F, STD Correction, Some porting, VF2 Reeds, Cool Head, 110 Fuel, FMF Fatty Pipe, 39 PWK Carb.
Cool to see what an fmfed Zilla is capable of. Mine felt like it signed off earlier than 6500.