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1950 Peterbilt 390 Supercharged 275 Cummins
1950 Peterbilt with 275 Cummins
Peterbilt 390 With Supercharged Cummins under load. LOUD!
275 Supercharged cummins jake brake!
1950 Peterbilt 390 Iron Lung Cummins
Supercharged Cummins 275 iron lung engine
Our 1948 Kenworth with a 275 Supercharged Cummins
Drag racing a 57 Peterbilt with a 300 supercharged cummins!
Ride in a 1957 Peterbilt with 300 supercharged cummins & backdrop manifold
old peterbilt with supercharged cummins 2
Straight piped 275 supercharged cummins working under load
1966 white with NHS 275 Cummins. "Supercharged "
