the 350 chevy when towing doesn't get better mileage then a 454 when towing. For just summertime towing I would recommend a 2wd. They get better mileage and will be almost 1/2 the price of a used 4x4. Towing my Barracuda back from Seattle on a u-haul trailer my 99 454 4x4 suburban got 11 mpg and...