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05-26-2008, 07:07 AM
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#1 |
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Registered User
 
Join Date: Apr 2008
Location: river falls, Wisconsin
Posts: 236
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mpg???
ok so i know this is does not matter because they are trucks and they are not made for good mpg, but i am wondering what people are getting with there trucks. the reason i ask is i have a 71 4x4 that had a sm465 with a 205 in it well i was dumb and pulled that out and put in a th400 with a 203 t case. now the thing just drinks gas like it is going out of style.
 i also put on a set of headers but i dont think it should have dropped that much! i know i could change the gearing but what would be good to swap to? thanks for any info i am really learning alot from this forum!!!
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05-26-2008, 07:29 AM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: mpg???
this poll doesn't answer your question specificly... but it does note a depressing fact on the MPG of these trucks.
http://67-72chevytrucks.com/vboard/s...d.php?t=172346 |
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05-26-2008, 07:34 AM
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#3 |
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Registered User
Join Date: Jan 2008
Location: SURREY BC, CANADA
Posts: 278
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Re: mpg???
Im getting 10-15 depending on the day ive got a 350 .020" overboar, a pretty hot cam, some long tube headers, hei, th400, and an unknow rear end gear thinking 3.73??. The worst part about it is my cams hot enough that a gotta run my timing bumped up and gotta run good gas and with regular being 5.25 a gallon it hurts.
Josh |
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