I run the 323 rear gear with the 245/60/14 tires it's a 26.4 inch tire and idles up the side of the Rockies at 70 mph like nothing , I got a little punchy driving at night and lost track of some of my receipts and numbers but generally I ran for 2.5 hrs and put in 40 bucks of high test at @1.45 lt so about 30 litres for 250 - 300 km not bad 10-12 litres per 100 km is better than my buddies new Silverado he was getting 14 per 100 on his last trip to Kamloops ,gotta love big hp/tq strokers they can haul the mail up the side of the mountain at 2000 rpm like a stock motor on the flat land
