Your not going to get an equal reading unless you run 2 gauges. Some guys put a bung on each side and just move the sensor around to get an idea of where the other bank is at. With fuel injection you can individually tune how much fuel goes to each cylinder "Sequential" but with a carb you will have a rough time trying to fine tune each bank. Most guys don't worry about it with a carb and just use the sensor off 1 bank of cylinders.
