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Re: gas mileage
My 75 1 ton with 454 , 4 speed with 3.73 gets around 18 mpg . The worst I have ever gotten with it was 11 mpg but I was loaded 26,000 lbs. Pulling my boats I get around 14 mpg I dont understand why you guys are getting so bad gas mileage. I am getting ready to build a 75 crew cab that I am going to put 427 and 4 speed with U S gear overdrive with 3.73 gear and I am hoping for around 20 mpg with it . I have always done great with gas mileage with big blocks .
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