It's worse than not optimal, with the YearOne rallye's it's pretty much impossible. The 17x8's have a 4.25" backspace. That won't even work with a 225/50/17, and that's the narrowest tire you can realistically fit on that wide a rim. Even with the 225's they'd stick out over a 1/4" past where my 275/35/18's sit, and I don't have much, if any, space to give up to the fender. Definitely not a 1/4".
The YearOne Magnum's are 17x8" with a 4.5" backspace, that would technically fit with a 225/50/17. I'm just guessing, but I'd bet you weren't going to 17" rims to run 225's though.
You should seam weld and reinforce that K frame before you install it! Especially the steering box mount with that 16:1 Flaming river box...
