zr-1 wheels

[68protouring454]

can you run these wheels safely, at high speed? i am pretty sure you need vette brakes spacers to run them, was wondering what you guys thought, i am looking at the 17x11 and 17x9.5 for my car, just cause of the price, and the red witch looks pretty badass, but i do like a few budniks
they are
17x11 with 7-7/8 bs 237 bucks with shipping ea
17x9.5 with 7-5/16 bs is what they come with, 212 with shipping ea.
jake