1958 DeSoto Adventurer Engine: 5.9L V8;FuelSystem: CARB; 4 Bore Gasket; Individual throttle bores;. 1959 DeSoto Adventurer Engine: 6.3L V8; 4 Bore Gasket; Individual throttle bores;. 1960 DeSoto Adventurer Engine: 6.3L V8;FuelSystem: 2x4BBL; 4 Bore Gasket; Individual throttle bores;.