A drag race at the Rocky Mountain Cummins Truck Fest puts a Duramax against a Cummins engine.
Who do you think takes it? Leave a comment below, or send us a tweet to @PowerBlockTV.
A drag race at the Rocky Mountain Cummins Truck Fest puts a Duramax against a Cummins engine.
Who do you think takes it? Leave a comment below, or send us a tweet to @PowerBlockTV.