Here is a shot at the Pontiac Nationals,
That's a 295/65-15 drag radial on an 8" rim. Look up the recommended rim width on that and I'll guess it's 9" or more....
But, it works, and works good. 1.5 60 foot times and it hangs the front tires. He's used this setup for years.
Here it is at rest...
Personally I love the sidewall bulge look. I never jumped on the big wheel and rubber band tire bandwagon, I just can't stand the look of a wheel that looks as wide as the tire is. I've had no love for all this pro touring stuff.