245-45-16s are an ideal choice for 16X8s. I run Hoosier A6s(though in a larger size)for autox and love em'. They do better at lower pressures and cooler temps than past Hoosier models. But they do like negative camber...preferrably above -2 degrees. They can cord fairly fast depending on vehicle weight and existing setup. Good Luck!
Don
Previously owned Z's: * 95 Super Black Twin Turbo * 91 Cherry Red Pearl Slicktop * 86 Black GL 2 seater