Need back spacing for pro star's
 

Front-Pro Star 15x6
Rear- Pro Star 15x8

I am not sure what tires to run yet. Any sugestions would be appreciated.
Infact if you would like to sugest some rims and a vendor.

15x8's 5.5 backspacing
15x6's 3.5 backspacing(i would assume) someone chime in on this one

I don't believe the 15x6s will fit on the front. 15x3.5s require a ton of grinding and you can only get them in 1.75" bs. I'd hate to see how much of the caliper is remaining if you can fit the 15x6s on there b/c I had to take a ton off to fit the 3.5s. I don't think any sponsors sell Welds, but I haven't checked all of them. Steve at SJM sells Bogarts, and you won't have to grind anything and they are :pimp: wheels. The cost is a little more than Welds, but you get what you pay for.
As far as tires, are you going to drive them on the street much? Also, what kind of power are you putting to the ground? That info. will help determine which tires would be best suited for you.