I don't post often, but I think this one goes under 5. It is +105 in the SBR sportbook right now.

Justification

W = Watch a lot of blues games and they are playing real low scoring hockey
X = Watched a couple Kings games and they seem to also play low scoring hockey
Y = Halak (Confirmed) has been sharper lately... and with the new coach more than ever
Z = Quick (Likely) the guy is just well... quick, and everybody knows it.

W+X+Y+Z = 4

There you go, a mathematical formula which adds up to 4 goals. GL