I'm installing a 100 amp feeder from a meter pedistal in a trailer park to a 14x80 mobile home.I wired one about five years ago.I installed from a 100 amp breaker from the meter pedistal disconect three #4 copper, two hots and a neutral and one #8 insulated green equipment ground. I was talking to an electrician at the supply house. He said to hard wire 100 amps to a mobil home.I have to use two #3 for the hots and one #3 for the neutral.and a #6 green insulated green for the epuipment ground.From what I read in the code book I can use #4 for the feeders and a #8 green insulated equipment ground.Am I right???????? thanks