have an 88 GTA what size wheel i know there 16's but are they 16x8 16x7 does anyone know

also think theses wheels would look good on a maroon 88 GTA

http://pittsburgh.craigslist.org/pts/1133622057.html

if they are 16's then they are 16X8. dont think they ever made a 16X7, but maybe.
as for the rims you linked too - well too close to a pimp my ride tv show, but others may like them.

Those wheels will not fit because if you look at the picture of the bok with the info on it it says they are a 5x4.5 bolt patern and our cars are5x4.75 bolt pattern and the guy also said he had them for a mustang .

The GTA crosslace wheels were ALL 16" x 8". There some 15" x 7" crosslace-style wheels made & put on other Firebirds.

As for THAT wheel you linked to...It says nothing about the backspacing or what lug pattern it is. Just "5 lug". Not all 5 lug patterns are the same. So they may or may not fit your car.

As I said before look at the picture of the boxes sticker it says they are style 770 , size 16x8 , bolt pattern 5x4.5 , and backspaceing +25mm .

I didn't read the picture, sorry.

But no...Those won't fit a Camaro/Firebird.