My aging Nitto 555Rs are leaving some to be desired, and I started looking around for "real" drag radials. I have an idea of which tire to go with but I need to figure out what wheels to buy. I see many guys running 15" race stars in the rears and I've wondered how they got the wheels to clear the brakes. The 16" S197 V6 wheels I'm using barely clear the calipers so there must be a sweet spot to the backspacing. Will any 15" wheel in a 6.5-7" backspace fit? I do have swaybar relo brackets waiting to be installed if those need to go on for clearance. And will I need extended studs/new lugs to accommodate this backspace? I'm trying to stay on a budget so I'm eyeing Diamond Racing wheels (NASCAR style) that are half the price of Race Stars. They're probably nowhere near as light but I really just want to improve my launches for now. Weight reduction can get expensive pretty quick.