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05-29-2007, 10:21 PM
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#1
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Join Date: Sep 2004
Location: Hamilton Square
Posts: 252
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Carb'd 350 - MPG?
Does anybody have an estimate on the actual MPG a carb'd chevy 350 gets? I know it is a "dumb" question but I'm going to be looking at a firebird that has a carb'd 350; since I travel above 50 miles a day it has a little impact on buying it.
Thanks
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05-29-2007, 10:46 PM
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#2
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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depends on more then it being a carbed 350. cam, trans, rear gears, driving habits ... ect......
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
Last edited by deadtrend1; 05-29-2007 at 10:46 PM.
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05-30-2007, 06:14 AM
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#3
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Join Date: Feb 2006
Posts: 1,385
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10 / 12 MPG is on avarage what it might get --but i am sure someone gets 20 but having 30 or more pickups with carbed 350s thats whatwe did get in city driving -- jz
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05-30-2007, 08:23 AM
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#4
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Join Date: Sep 2004
Location: Hamilton Square
Posts: 252
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jesus -- i didn't think it would be THAT bad...
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05-30-2007, 10:04 AM
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#5
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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As mentioned above, mileage can very greatly depending on the setup and your driving habits. To even make a guess (beyond saying "somewhere between 8-15") we'll need more information on the setup, and an honest evaluation of your driving style.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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05-30-2007, 04:08 PM
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#6
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Tru2Chevy
As mentioned above, mileage can very greatly depending on the setup and your driving habits. To even make a guess (beyond saying "somewhere between 8-15") we'll need more information on the setup, and an honest evaluation of your driving style.
- Justin
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Agreed. 8-15 is what I'd say but there is a lot of stuff that can impact the number.
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05-31-2007, 10:25 PM
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#7
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Join Date: Sep 2004
Location: Hamilton Square
Posts: 252
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Well the engine has a mild cam, 650 cfm carb but is leaned out a bit... nothing crazy on it. The current owner says he can usually get 15 miles to the gallon or so ... with driving back and fourth to work I usually go at a nice crusing speed (55-65 mph) ... it's pretty much just a straight shot down rt 33 east so it's a nice easy drive.
...besides, I"m getting really crappy fuel econo in my jeep -- but at least with the GTA i wont mind spending the money on gas
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06-03-2007, 01:59 PM
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#8
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10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
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if that doesnt have a crazy low gear im gonna guess 15-18mpg
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01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
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06-03-2007, 03:39 PM
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#9
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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depnding on the cam size and gearing it is possible to get 25mpg with a carb'ed 350, but it would have to be a pretty mild cam. if it is an automatic you shoudl also check to see if the TC still has lock up intact as that will dramatically effect the mileage(easy eough to hook back up if it isn't there, but a good haggling point)
driving habits are a very big deal with a carb since they do not adjust for mild to moderate load, they just dump in fuel. roll into it easy and roll off the gas when slowing and you will be fine.
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06-04-2007, 10:17 AM
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#10
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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Quote:
Originally Posted by NJSPEEDER
driving habits are a very big deal with a carb since they do not adjust for mild to moderate load, they just dump in fuel. roll into it easy and roll off the gas when slowing and you will be fine.
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I think that is where a q-jet shines.
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