My dad is lookin at a motorhome with one of these things and needs to know how much tq it makes. the owner says its a 190 hp but the book says the 89's were 160 hp and 400 ft lbs. I know the 12v cummins 5.9 is 190 hp and 475 ft lbs but those came out a lot later right? did the owner do a swap or did they make 190 hp cummins in 89? Also was it turboed? thanks in advance.