A friend of mine did 8 cylinders in his blown Chevelle years ago. He used Westec airplane gauges. 4 cylinders on each gauge. They make a 2, 3, 4 face gauge. We would need 2, 3 face gauges. Then you would need to get the signal to the logger. Seems to me that airplane gauges would send a signal to keep record. Someone like Bob ought to be able to make it work.