I just completed a 1600 mile trip from Okla to SE Colorado, my first trip in the Minnie. I must say, I was really impressed with the smoothness of the 460, it idles as smooth as my old flat-head's did. My mileage averaged a little over 8 mpg through mountain and flat driving which I guess is normal. My only complaint is that the 460 would slow down on the interstate whenever there was a grade and sometimes down to 55 mph. Therefore, it takes quite a bit longer to cover the same amount of miles when compared to driving a car. My other rv is a 25 ft. Silver Avion which I pull with my 2001 Dodge Cummins and it has more than enough tourque to maintain a constant speed on the interstate and most secondary hiways. I had had the exhaust replaced right before my trip with a 3" Magnaflow and 3" pipe throughout and was wondering what headers would do for the tq. All I can find for my rig is a Banks setup and they are too expensive for me. Does anyone know of another brand that will fit? Thanks!
1994 Minni Winni, 24 ft., 460 cid, Class C