1974 dart swinger build

so after searching the web for about a year for a decent abody with a v8 finally found one sitting in a guys yard 1/2 mile from my buddys house. Now its time to get it in shape, the guy i bought it from has a 85 318 magnum that he bought for the car from the guy that builds his motors suppose to be totally rebuilt stock he will sell to me for $200.

Need to figure out what i need to do get the some good hp out of it. planning on a dana 60 cut down to fit (cars already mini tubbed) has a stock 727 and 7 1/4 posi now. picked up a set off headers on trade over weekend, car has 318 with edelbrock 4 barrel intake and edelbrock 1414 carb.

shooting for bad a$$ street and strip car (kindof stuck on 318 )

all suggestion appreciated