Yup, like Keith said, way to heavy on the spring rate.... I'd go with something in the 110 to 130 pound rating. With too stiff a spring, the shock can never work or ride correctly. Better to err on the soft side then on the stiff side!!!!

As to which brand, I've switched to AFCO for coilovers and shocks, they seem to be more accurate on their coil rating and shock valving probably due to their racing background.... That's not to say they are the only company that makes a quality unit, just that it's my preference...