I replaced all the bulbs and it helped a little. A couple were burnt out but the others just didn't seem as bright as the new ones. The gauges are still hard to see but it's a little better than before.
The 73 gage lighting is the pit's I have the same thing.
I have a good tach on my sterring wheel that really lights up. I drive my speed by that because it is MUCH easier to see and read at night. I know what RPM is about what speed.