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08-10-2014, 12:10 AM
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Senior Member
 
Join Date: Feb 2001
Location: Killen, Alabama USA
Posts: 3,629
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Best combo for fuel mileage?
I'm looking to get my 1968 swb truck on the road as a possible daily driver for a while. I'm either going to run the original 307 V8 or possibly a 250 inline 6. Trans will either be original TH400 or 700R. I have a 3.08 or 3.73 rear axle available. From the above, what would be the best recipe for optimum gas mileage. I drive about 30 miles a day round trip to work in a 45 MPH zone. Thanks for any help.
Joshua
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72 Cheyenne Super swb. Factory 402/400,tach,posi,AM/FM, A/C. Adding cruise, 8-track 72 Cheyenne Super swb. 350/350 A/C, bucket seats 72 Cheyenne swb. Factory 402/400, tilt, posi, A/C 72 Cheyenne Super K-10. 350/4 spd., posi. 72 Suburban 350/350 tilt, tach, AM/FM, A/C, luggage rack 72 GMC Sierra lwb. 350/350, A/C. medium green/olive interior |
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