Mike
All you need on top would be feul press and boost press gauges. The rest would be in the car. If i had kept my roots i'd have mounted the 2 gauges with a bracket off the back of the blower angled a bit towards the driver. I have the 2 gauges in cups directly in front of me for the procharger set up.It would be less of a visibility restriction and a little cleaner look.Just my