The rv/torque cam with a good set of heads (1.94 intake valves 1.60 exhaust valves with small chambers dual plane Hi rise intake and 650 cfm carb with good free flowing exhaust will really wake the 305 up( i think it will suprise you ) built this combo for a buddies work truck with a 350 turbo it will spin the tires with all his tools and equipment in the back of his 81 C-10.and it gets around 20 mpg.
