Blizzard "Charolette"

Online looking at rear susp. options for my Duster waiting to fire up the snowblower (900 hp at the blades, turbocharged on pump gas). Leaning toward Mancini HD springs, Caltrac bars w/ Calvert shocks for a primarily street setup (opinions?). Can`t wait `till Spring. Already lost $400 worth of gigs this weekend; stand to loose more - snow sucks :(