When the Mollet family, the folks behind Plowboy Diesel in New Douglas, IL, got invited to the SEMA Show a couple years ago, it was a pretty big deal for the small engine shop. The reason for the SEMA invite? The shop’s 1970 Dodge pickup with not just one, but two 5.9L compound turbo Cummins diesels under the hood! You heard that right! Twin Cummins engines in one engine bay.