Ford claims 815 horsepower at the crank, but how much of that makes it to the ultra-wide rear tires?

In the case of this Ford Mustang GTD, two runs were done back to back, both at fifth gear. Typically, dyno runs are performed at the gear with a 1:1 ratio. For the Tremec transaxle, that’s seventh ...

What happens when you shoehorn a Godzilla engine in a 1986 model year C10? Enter Jody Gunter from Gunter Specialty, the proud owner of a superb-looking Silverado with a lot more oomph than expected.