gas mileage

[meatwagon83]

Originally Posted by RT Big Block

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 .

im callin shenanigans on this one!

[RT Big Block]

Originally Posted by meatwagon83

im callin shenanigans on this one!

I know you dont believe me but its true ! I worked for GM for 15 years . And I do know how to get mileage out of a big bock and its real easy to do . I guess it does help I have a friend that was a engineer at GM too.

[meatwagon83]

Originally Posted by RT Big Block

I know you dont believe me but its true ! I worked for GM for 15 years . And I do know how to get mileage out of a big bock and its real easy to do . I guess it does help I have a friend that was a engineer at GM too.

Well by all means share with the rest of the class! I know I for one would love to get another 10mpg out of my truck!
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[LynnJr]

I'm getting 10-12 with a 1/2 ton short fleetside 3.73 rear and hard tonneau cover slammed on the ground with th400.