I have an 89 sc with a "custom" single fogger nozzle system. I have it plumbed directly into the piece that goes above the intake. The jets are 55n 34f (125hp). I am pulling fuel directly from the fuel rail at stock fuel pressure. The system seems likes to pop/crack up and fall on its face. Is this a rich/lean issue. The plugs are not telling me much, seem to be ok. The system is all new. And the wiring is all correct pulling power direct from the battery. Any suggestions? Jetting wrong?