i read up on some mods a guy did to his 2.3. He put a big intake on it, free flowing exhaust and then he bumped up to some higher pressure injectors. i guess the stock is about 14lb he bumped up to 19lb 5.0 injectors. He also mentioned there are some 17lb injectors that would work but they arent ford. Is this a good thing to do for some extra power or is it going to kill my mileage?