new fuel pump will give you the piece of mind that its not going to fail for a while....and give you room to grow on your engine modding. new fuel injectors will also give you room to grow but shouldnt be changed to higher flow (24, 30 lb injectors) until you absolutely need them because you will have problems running too rich. the stock 19# injectors are good to around 300 hp. but if you are going to use nitrous it would be better if you upgraded to 24# injectors if its a big shot