i have a 94 z28 and im lookin at some rims and the rears are 18x10.5 with 17x9.5 up front. These sizes will fit right?

and what is like the max tire size or the preffered tire size to go on them. i don't really like really low low profile tires but idk how big can fit.

What are the offsets of the rims? As far as the sidewall, I try to keep mine around stock diameter so I don't have to get the speedo calibrated. 275/35/18 is almost exactly stock diameter, and I don't know about 17s. With a 10.5, you could probably fit a 315/30/18 without much problem. I have 275/35/18 on 18x9.5 up front, and 295/35/18 on 18x11 out back. I could go with a much wider tire, but I got a very wide 295 instead (Goodyear GSD3s) (different companies have narrower or wider tires in the same tire range, much like shoes. A 10 in Nike might be a 9 or 11 in Reebok or Adidas.. you get the picture). I didn't find any tires within my budget range in 315

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for the 18x10.5 its says this for the offset/backspace +58mm / 8.02
and thanks for the help