what do you clean your intake with

I have 3 pressure washers (one is a hot water washer) and I have tried everything mentioned. I was hoping someone had a super secret cleaner #-o#-o

thismanifold has some kind of aluminum paint on it (really looks like aluminum-didn't know it was painted until I went to clean it) I was hoping NOT to glass bead it on the car

So you left out some very important information. You don't want to clean the intake. You want to remove paint from it. Huge difference. I don't recommend putting anything on the intake that removes paint. It will also attack the intake gaskets. You want it done? Remove it.