My 318 combo was built using 340 heads w/2.02 valves, stock 360 cam, Edlebrock SP2P intake with a holley spread bore carb (great carb). If was to do it over I would pick a more agressive cam and maybe use small valve heads.
It got used with both Auto and a manual OD 4 spd trans, Iliked it best in my short wheel base 1/2 ton with th manual od and a few degrees advance on the cam timing