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What is the best way in your opinion, to improve the mileage for a 400 small block engine?

(2011-02-17 15:20:21)
1. Zack Childers Says: 2 bbl carb
2. Old Man Dirt Says: A small four barrel. While two barrels are good for some things, fuel economy is not one of them, Going to a four barrel will improve fuel economy as long as you stay out or the "back two". You don't have to replace the manifold, spacers can be found to adapt a four barrel to your existing one at places like summit racing, or speed way motors.
3. Ken D Says: Tire pressures, drive it nice, and as little as possible.
4. NX Says: cold intake, check your alignment and tires, tie rods,
5. Stacey Says: Good luck I've been trying for years, the best way is leave it sit in the garage
6. Godless Rogue Says: lol buy a bike. my 64 thunderbird with the 390 gets 6mpg city, 11 hwy haha
Tag: What is the best way in your opinion, to improve the mileage for a 400 small block engine?
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