Thanks for the info. The car's previous owner had 175/70R13 tires put on which are
slightly shorter than the original tires. Here is a link to a tire size
calculator. This link shows the tires specs and the differences between two different sizes; very cool. I am looking into some other tires which will yield around 5.5% less rpm's. The final drive numbers would gain about 2%+ IF they fit. So, looks like the tires will be my first mod and easiest also. The final drive thing is not going to happen; at least for now. Thanks again for the feedback and help.
