I have a TF P-51 and am running a DA-50. Power is OK but not as much as I would like. If I had to do it again I would seriously look at the MVVS 58/Evolution 58 or BME 58 though I prefer a rear carb. And in reality if you added a pound to the nose of this you may have to add 4 oz to the tail for balance. Either way doesn't matter at all because the TF-51 doesn't fly heavy. At least the ARF version doesn't.