mmm
go find a hot water pressure washer, spray some degreaser on, spray the fucker and be done with it, just use your common sense, you are not flooding it, and no valve cover and distributor, bag your air filter,etc.... also let the motor and everthing cool off first...
also don't turn the pressure all the way up...it will chip you paint if you don't know what you doing,....
try not to use a hose, it seems like it take too much water that way, steam work the best...