reliabiltiy of beetles on the interstate

I was wondering if my 76 fuel injected beetle could handle daily driving on the interstate in Kansas City. I'm moving there next month and my 2nd car I use in the winter is breaking down and I just want to get rid of it. The beetle will have to make a 2 1/2 hour drive to KC and back fairly regularly, as my brother just had a baby and I love to visit. I also will be doing alot of driving around town. Is there anything I can do to make it perform better? The engine seems to be in good conditon and I keep the oil changed and adjust the valves and all. I guess I'm just looking for some tips or some mods to the car that would make it a better car traveling at 75mph. Once I get up there and get settled in my new job I'm going to try to get a type IV engine built for me and installed. Lots of questions about that, but we'll address those later. Anyway, I'd love some ideas of what I could do to make it drive better. Thanks