My 4.6 is back together and i have an edelbrock intake manifold on the way plan on running a 6061 elbow and and 75mm throttle body, but what fuel rails should i go with. Do i have to run the edelbrock fuel rails or are there others that work. I have heard that you need to adapt the fuel lines on aftermarket rails. So what is everything i need to convert to different fuel rails also i want to run port inected nitrous if that matters. I am useing stock 19lb injectors i have a spare set off the lightning they are 42 lb inectors should i use them with the nitrous or are they still to big.