iv got a low miles 4brl 350 sbc from a twin wheel camper truck

is this likley to have an upgraded/rv cam? what would be a good cam/intake set up to suit a part time fun truck 49 a.d 1/2 ton
basicly a combo that will esily light the tyres pull hills with ease but still have reasonable mileage
will probably use a 3.23 rear and 235 70 15 tyres and a th350 (see other post)