Just rebuilt the Edelbrock 1406 carb, installed a fuel pressure regulator and gauge. The fuel pressure is around 5psi and the engine is running pretty well. I feel like it's running a little rich. The needle valves were open 2 1/4-2 1/2 turns each, which seems pretty excessive to me. One needle valve was damaged, so I switched it for one from a spare carb I have. That carb needle was also open 2 1/2 turns. Is this standard? I haven't used either carb before. The car also has flamethrowers installed (which I don't plan on using) which could also explain why it is running rich.