Big Tractor Power heads out to the field with a 305 engine horsepower Allis-Chalmers 4W-305 4wd tractor that was built from 1982-1985. In this video we will see and hear this 731 cubic inch engine tractor working in the field and climb up in the cab to see the farmers view of operating this big tractor. Connect with Big Tractor Power @ http://www.bigtractorpower.com/ E-mail contact@bigtractorpower.com