According to my engine rebuilder the only difference between the Johnson 225 and the 225 HO is the decals ALL part #s are the same so what does make a HO an HO if its only decals I'm going to start printing them up so anyone who wants to upgrade just IM me the boat seems to be way down on power seems like everyone else with a TR 21 with a 225 will run at least in the low 70s mine wont run but 60 after rebuild with just me in it any ideas guys ?????