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Thread: Gas milage drop going from 3:23's to 4:10's

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  1. 06-18-2008 03:06 PM #1
    yournamehere018's Avatar
    yournamehere018
    yournamehere018 is offline Evan
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    3.73s seem like they would be a happy medium. That's what I want to go with when I start school this year and can get it done for free.
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.
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  2. 06-18-2008 03:16 PM #2
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    AKlowriderZ71
    AKlowriderZ71 is offline Senior Member
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    3.73's in my truck, 19.8 MPG when N/A on the highway.
    2001 ECSB 4x4, 5.3, Radix, 3.0 pulley, VHP Trucker cam, 216/224 .551/.551 115 lsa, 1.8 Crane roller rockers, 4L65E, Yank SC3000, 3.73, Cal-Tracs, HPTuners.
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  3. 06-18-2008 03:19 PM #3
    yournamehere018's Avatar
    yournamehere018
    yournamehere018 is offline Evan
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    Got me beat. My city/highway average is 16 or 17 with a 4.3 with cold air intake, flowmaster, all synthetics, and the tb mod.
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.
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  4. 06-18-2008 03:20 PM #4
    AKlowriderZ71's Avatar
    AKlowriderZ71
    AKlowriderZ71 is offline Senior Member
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    You need more torque. I suggest a 6.0.
    2001 ECSB 4x4, 5.3, Radix, 3.0 pulley, VHP Trucker cam, 216/224 .551/.551 115 lsa, 1.8 Crane roller rockers, 4L65E, Yank SC3000, 3.73, Cal-Tracs, HPTuners.
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