It may have been discussed but I can not find it!

What is the easiest/best way to achieve a Higher final gear ratio for the Highway?

I do most of my driving in the 70-80mph range and I'm well over 3000 rpms.

FYI: just bought a 1992 Eagle Talon TSi 5-spd with 38K original miles. Older couple had it and it's 100% stock.
Only thing I want to do is upgrade all the stuff that typically deteriorates over time and Better Gearing if possible!?