Replacing front tire.
I recently bought my first road bike. It is a used 1989 Trek 330 best as I can tell and The wheels are pretty crappy/seem cheap. I dont feel like figuring out which wheel I can use on the back/ transferring the cassete or whatever I would need to do. Can I just buy a front wheel for it and not replace back? would I see much boost in performance? any reccomendations?