67 Camaro Speedhut Gauges too small?

[jks67ss396]

Hi guys

Im looking at getting a custom set of Speedhut gauges made for my 67 Camaro. They make 4.5 and 5.5" gauges. The 5.5" is probably too big. I have seen backing plates that allow Speedhut and Autometer gauges to mount to the stock dash, but it seems like there is a gap between the gauge and the dash. Maybe its just the angle of the picture or lighting. Do any of you guys have pictures of Speedhut gauges in a 67/68?

thanks