since the Cummins has companion cylinders, we can use something called exhaust overlap to adjust the valves on that engine. At the very end of the exhaust stroke, when the exhaust valve is still ...

Cummins added improvements like common-rail direct injection, upgraded Bosch fuel pumps, new turbochargers, and a 24-valve valvetrain ... motivating the truck's exhaust brake function.

This might have been enough to scar some people for life, but the Gulas family headed straight to the Dodge dealer and bought a brand-new '90 dualie with a Cummins ... the '99 24-valve pickup ...