A compelling black-and-white action photo from practice at the Jimmy Bryan 150 at Phoenix International Raceway, taken on March 26, 1977. Two USAC Indy car competitors run side by side on the banked oval: Mario Andretti in the #9 McLaren-Cosworth, sponsored by CAM2 Motor Oil and Norton, and Wally Dallenbach in the #40 Wildcat-DGS, wearing Goodyear rubber and Monroe shocks livery.