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Re: 350 for torque/mileage
Quote:
Originally Posted by HSRACER
The single biggest thing you can do for mileage will have very little to do with your motor. If you want to fix mileage a gear swap is the highest impact thing you can do. If you still want to take the engine out put a torque cam in it. I have a 383 small block with an Edelbrock torque cam and a 3.08 gear in the truck. That combo works great with the turbo 400 trans.
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Yes, with 4.56 gears it's going to be hard to get any significant milage improvement for long distance driving. 3.08-3.42 are good all around gears. Once you get up to 3.73 your milage starts to suffer. Since you have 4wd and if you have larger (I think) tires, 3.73 might be the sweet spot.
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68' C20. 283CI w/55CC 305HO heads, NP435 Close Ratio, Corp. 14 bolt FF 3.21, 75' front end swap (everything but the X-member).
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