you can have them bored or use a 1/4" spacer and that will work too. Make sure you have enough threads on the studs to be safe
any good online sites that sell spacers for cheap/good price do i have to run spacers all around or just the front?
The center part of the hub in the rear is 2 5/8" roughly. I think you might have to have the spacers front and rear. Otherwise .25" would hardly be noticable to the eye IMO. Also I second that about ebay. I found a great deal on my 1" spacers there. Paid less than half what they charge for identical looking spacers from jegs.
when ordering spacers should i order 1/2" thread studs or 12x1.5 thinking of ordering of ezaccessory.com