fuel system questions and issues.

[low_84_inchaska]

hey guys i got my truck running on saturday but ran into a few issues...

1. seems my fuel rail and injectors got some varnish in them cause i was having issues with fuel getting to the cylinder and i took them off and there is some varnish residue in the injectors, i tapped it out of them...is there a way to get the injectors and rail cleaned out?

2. my pressure side russel fuel quick fitting came off during testing and sprayed gas all over...this has happened twice so i ordered another one. has anyone had this issue before..i am going to install the new one and let it pressure test for an hour..this really freaks me out...especially if i was going down the highway and the thing popped off with a hot motor. It never went on as easy as the return fitting did,,i hope i had a defective fitting.