I assume you have 7" Fuchs in the back? If so, H&R makes quality "hub-centric" spacers in 28mm that have wheel studs pressed in to them. I would definitely stick to a well known brand.
Our host carry's them
I have these exact ones on my '88 911, fills the wheel well out nicely. Here's a shot where my suspension is loaded to give you an idea of how much it fills it. Stock tire size on 16x7's. No, they do not effect your ride height what so ever.
