Tire size

[firebirdzig]

I’m looking into ordering some forgeline wheels here pretty quick and I’m borrowing a wheel measuring tool. I need to have the tires I’m going to use for the measurements. I have 2 questions. 1. How do I figure out how big of a tire I can use in the front and the rear. 2. What are some suggested tires for a street car that won’t be driven in the rain and let’s be honest it won’t be raced. My car is a 68 firebird with ridetech airride all the way around and stock tubs. Thanks in advance. Also feel free to post some pics of your first gen f-bodies with different set ups.