so i got a 93 5.0 2 bolt block and heads from a friend dont know wat they came from. so i have ported the heads and have a comp cams roller rocker kit for it as well as a cam kit i wanna have it carburated wats a good size and make of carb i have flat top pistons and I beam rods and maybe getting a 75 shot of nitrous i would also like ur opinions on that.also wat fuel pump and regulater should i use i am going for out side the tank elec. pumps