There is no way - my LT1 Z/28 had major weight and aerodynamic advantages over ANY Caprice, and it couldn't hit 160. There is only so much gearing can make up for... alfitz@alfitz.com wrote: The Chevy Caprice are limited at 121 MPH, and even if they weren't, 172?? Sure..... --------------------------------- Do you Yahoo!? Y! Web Hosting - Let the expert host your web site