new to mopars!

I have a 74 dodge dart sport 383 big block in her , bought off a guy that was building on her and has never been raced or driven on the street. With this being said im not sure 100% what he has done , i can see edelbrock carb, intake, aluminum radiator, hooker spliced together headers, i here a cam anyway it sit for a couple of years i got it running and when you punch it the car falls on its face wont go or dies. Any input is greatly appreciated.