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You also need to remember that 180 hp on those carbed engines was a "factored" net rear wheel horsepower to beat insurance and government mandates. Most of these motors easily put out a true 200-230 hp and it didn't take much to make a bunch more without a tuner.
1999 3/4 ton 5.9 v8 360, I sadly get consistently 8.7 mpg, and that's basically just driving around town and to school. Its basically all stock, but it's got American racing rims, dual rear exhaust, brush guard. I'd be ecstatic if I could get 12 mpg out of the old girl! But.. I'll believe it when I see it. It runs like a champ, I guess I'll hav to live with the mpgs! Any suggestions on how to get that mpg up, would seriously be appreciated!
have you repaired the plenum? could also make sure your tires are inflated properly. even being a couple of psi under inflated could make a mpg difference.
Well I had my local mechanic make sure the plenum gasket wasn't out because I thought the same thing. According to him it wasn't. And yea I always try to watch the tire pressure, oil, ect.....
if you compare some of the old carb setup truck to some of the newer trucks you have not really gained any. some people with 3.23 gears and thermoquad carbs have claimed to get as high as 22mpg with a 318 and never dropping below 15mpg.
Maybe, but I think power and torque is superior on builds with that kind of mileage.
Sorry guys, I did not know I was in the wrong forum for HEMIs. Yes, I do have the new Crew cab Longhorn with the 5.7L Hemi. Love the power and the room! John
