Can I use a rim with 14 offset on a 95 Z28?

 

What do you mean by a "14 offset"? Your current wheels have close to a "0" offset. "Offset" is referring to the depth of the dish of the front of the wheel in relation to the mounting hub.
You need to clarify what you meant to say.

 

Sorry, brain fart! If I purchase rims with a 14 offset, will they rub in any way?

 

OK, I assume you're referring to 14 mm? My mind was on inches before and I was picturing you building a drag car!!
How wide are the wheels?

 

LOL. Its 20"x9" 5x120.65 14wheel size 245/35/20 front and 275/30/20