Few all-original fuel-injected 5.0-liter V-8 Mustangs survive today, making this no-reserve Mecum lot all the more fantastic.

So, you're mapping out a hot rod project—a "build," if you will—and you plan to use Ford's Coyote 5.0-liter engine as its motivator. Excellent! That's all well and good, especially if a Fox-body ...