I've got used 225/45/18 Michelin Pilot Sport SP2's (I think that's right) on there now.... damn near to the wear-indicators in the tread. The sidewalls don't match the rim edge either... I'm afraid of what a 205 tire will look like.stretched on there. However the Michelins have a nice rim lip protector on it that at least is flush with the rolled lip edge of the rim.

So- What if I took the old brake drums off the front and had them redrilled to the 5x4.5" pattern? This would eliminate the need for the billet adapters and set the wheel back 1" to center it in the wheel-well. Is this feasable?

This puzzles me- I've got a early/mid 60's car with 8" rims that requires a high-positive offset. Most wheels advertised for these cars have a 0 offset. I can't imagine trying to put an 8" rim on there with a 4.5" backspace when my 8" rims with (6.875" minus 1" adapter equal) 5.875" backspace barely fit (rubbing the fender lip when turning).