MPG The Best Of Both Worlds

Are you kidding? I don't think that carb ever took MPG into consideration when it was designed. 3.91 gears has got to kill any kind of mileage. That cam, too. Perhaps the converter isn't that big of a hit in the MPG department. Many of the things the manufacturers do only increase MPG a tiny bit, but added all together, they get them where they want. These are the three things that would get the best mileage increase, I think. At 9:1 with aluminum heads, you could go higher, but that's more difficult to do than the other changes. Lower weight always helps everything. Better MPG, acceleration, braking, and cornering. Did you put this car together the way you wanted it, but can't afford to drive it because of the gas, so what's the point in having it if you can't drive it? My stock '69 Charger R/T, with 100,000 miles on it, gets 9MPG. Both of my 273 Darts, a '64, and a '69, both get around 15, and a '69 225 I had was around 18MPG. I knew someone that got 30MPG in his slant 6 Barracuda. I'm thinking that worn out motors use more gas. See if you can get a wide band O² sensor to observe your air/fuel ratio. This will help you dial the carb in so you're not just wasting gas when cruising. You'll need to install a bung in the exhaust close to the motor. I guess you can get by with just one if the motor is balanced side to side, or install two bungs, and switch the sensor from side to side to compare. The wide band sensors are around $100 to $200, I think, plus you need the meter to read them. Any of this sound like something you want to do?