Got a 6610 and with small adjustments getting about 150 horsepower out of it. More horses than our 6620 has. The guy even said he's put one 6610 give out about 180 horsepower for work in the swamp.
"This videotape must not be reproduced even partly without written permission from John Deere advertising agency and company" You are breaking copyright rules towards John Deere, I insist this is taken down immediately I'm a John Deere Employee btw