This is more or less for my father. He is having problems with his 1993 heritage soft tail evo engine HD. He had taken it in to get gasket's replaced & more or less to figure out what was the problem that caused the problem's in the first place. Guy told him gaskets just needed replacing but new gaskets & 400 mile's later back leaking. Problem area's of leaking gaskets = rocker arm box & understand the two probable don't have anything in common other then what could be pressure issue's but now head gasket is also leaking. The guy did do something I guess cause the base gasket is no longer leaking but rocker box back leaking. We think it's from some sort of pressure build up but not sure. I told him probable be best to go online and ask all the people possible.. Thanks to all. Keep riding and watching out for granny pulling out.