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Jay Leno drives postcard-perfect '32 Ford Highboy Roadster

At the turn of the century, it was arguably the Honda Civic that best defined inexpensive performance tuning, and in the '50s it was the Tri-5 Chevys. One of the earliest platforms to gain a huge following among young people looking for a cheap way to go fast was the classic '32 Ford Highboy Roadster. This week, Jay Leno's Garage looks at one of the very first vehicles that defined the look of the hot rod heyday.
This '32 Ford was built in the '40s and graced the cover of the fourth issue of Hot Rod Magazine back in 1948. All of the hot rods that you see shining at car shows today owe a serious debt of gratitude to this roadster. It bears all of the cues that define the look, including a notched frame and hidden door hinges. Under the three-piece hood is a flathead V8 boasting all sorts of period modifications, including copper cylinder heads. It was seriously fast in its era too, and proved it by reaching 112.21 miles per hour on a dry lakebed in 1947.
These days, this hot rod is on display at the Petersen Automotive Museum. Although, if you can't make it to California to see it, the United States Postal Service is celebrating this Ford with one of its two hot rod Forever stamps. Like Jay says in the video, in terms of hot rodding, "it all comes back to this." Check out the video to learn more about this rolling piece of tuning history.

Shelby GT500 and Roush Stage 3 go head to head at the drag strip

The Ford Mustang is a brilliantly affordable source of horsepower, with a base 300-plus-horsepower version available for well under $30,000. Jumping up to about $35,000 will get you a solid 420 horsepower from a high-revving V8, while those with some extra disposable income can get a pair of 600-plus-horsepower monsters. Both the Roush Stage 3 with its Phase 3 package and Ford's factory Shelby GT500 even crest the 650-horsepower mark, with 675 and 662 ponies, respectively.
Naturally, someone needed to find out which of these hi-po Mustangs was the quickest. And while this video is quite obviously a dealership commercial, at least there's some solid drag racing between two of the most powerful performance machines available for under $100,000.
With two NHRA drag racers at the wheel, the Stage 3 and GT500 go head to head for three races. Scroll down below to see the results in the full video.

Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"