SLP sells 16-8 1/2 take off firebird rim @ $50. You can fit the M/T 16-10 1/2 there will be some grinding necessary at the nuckle on top of the A arm. Or you can get some custom wheels but grinding will still be required. I haven't heard of anyone that has figured out how to put a 15" wheel on with stock brakes and A arm. The Aluminum is holow so only grind what you have to. Ric
I just got a set of M/T ET streets on a 16x8.5 C4 rim. It looks as if you have to do just a minor bit of grinding. I plan on running them Sunday so I will post pics of what the mod look like. It looks like you could put the 16x9.5 or 16x11 c4 rims, but it may require more grinding. I have a set of 9.5s and I am going to check how they fit also.
A friend of mine has the same size ET Streets on his Camaro. It is an MTI 422 that makes 500+HP. He cut a 1.56 60' on them Friday night. And trust me it is in the 10s.
Ok the 16's will require you to grind, and I know that sounds bad, but it's not all that much you have to do.. Some people say the A arm, it's the cap of the upper ball joint that needs the work.
I put a set of 16's on mine, what I did was cut (I used a body grinder) to cut the top of the cap. If you look close you will see a nipple sticking up, thats all you need to take off maybe a little extra but it's not all that bad. Then take a little black paint and touch it up.
On my car, the wheel actually hits the knuckle. The highest point of the knuckle is towards the rear of the car. When I went to mount the wheels on the car, you can see where they hit. As soon as I "clearance" this just slightly the wheel should clear just fine. As for the "cap" , this appears to be a dust cap which is about 1.5 inches in diameter. It has an inner portion which is probably about 1 inch in diameter which rises up probably and 1/8" higher than the rest of the cap. This look to be hitting on my car. I am going to do the clearnce work in the next day or so, and I will post pics of what I run into. But it looks as if it will work.