Wheels and bumpers opinion wanted

you can go as much a 4.5 backspace i believe with stock suspension and still have room...

djvcuda's car is running a 17x7 with 4 1/4 backspace and when we measured for wheels he ordered 4 1/2 backspace but they stopped making them and he went with 4 1/2 instead...

think he is running a 225/50-17 up front and something a hair wider but same height in the rear..






I'm trying to get the best bang for the low buck and have to go with what's available.The 17x7's with lugs and caps are $139.00 each hard to pass up