[jdean]

One way I have seen is to 1) cut the holes for the gauges and switches and then 2) cut across the gauge holes in a "pie slice" pattern stopping just at the edge 3) fold the pie sliced material tight through the hole and glue to the back of the dash.

The extra margin of the gauge bezel will cover and hold the rest.

Some use 3M adhesive spray, but the professional auto upholstery folks use a brush-on liquid glue that holds like rivets.

Also, FFR sells real leather dash covers that should fit most any Cobra dash for about $90.00.