s10 traditional bd on 22's???

im thinkin of running 22's on the rear for sure and possibly up front... i am pretty sure i can stuff a 22x9.5 in the rear hesitant on the front... what offset should i be looking for???i'll be running no bigger than a 255/30/22

22x8.5 with 5in of backspacing. thats what i have, and my friend has the same too, hes bd and it clears good. we both have boyd wheels, just different styles. i got my measurement from his wheels, so one day when i get around to BD'in my blazer, my wheels will have the right offset and everything.

Take my addvice run 22x8.5s adn run 245/30s the diference is minimual but makes a huge difference when all said and dun.