Back in black is the theme for this modified, postwar Chevrolet coupe. Built along the lines of traditional Street Rodding, this 1950 model was customized back in 1990 with touches like frenched headlights and tail lamps, shaved door handles and a louvered hood. This 1950 design shows mild prewar-carryover motifs like bulging rear fenders and the high-cab design, but Chevrolet was already on its ascent to sales records in this decade. Devoid of excess chrome and logos, and…