How long are your tap lines? It sounds like you've over carbed it, and are dispensing at too high a pressure for teh tap line, so it really pours too fast, knocks too much CO2 out of solution.
Try turning it down to like 4 psi, purge the pressure down to 4psi, and see what the pour is like. shouldn't be as foamy and i bet it tastes too bubbly.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10