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08-06-2016, 10:58 PM
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#1 |
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Registered User
Join Date: Dec 2014
Location: Euless, Texas
Posts: 510
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Carb selection
74 C10 350 w/Carter Quadrajet carb. Not satisfied with gas milage, around 9 to 11 mpg. Carb may need rebuilt. Mulling over whether to rebuild or get a 600 cfm Edelbrock. Are there any suggestions?
TIA
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1974 Cheyenne 10 LWB Stock 350 W/HEI /TH350/AC/4 BBL Quadrajet Mopar by Birth Chevy by Choice |
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08-07-2016, 09:08 AM
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#2 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,538
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Re: Carb selection
Probably not the best move for mileage. You'll need to adapt an eddy to your intake. You'll spend a few hundred and likely get the same or worse mileage!
Tune the wazoo out of what you got first!! What's your timing curve like? |
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08-07-2016, 09:27 AM
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#3 |
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Robert Olson Transport
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,277
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Re: Carb selection
the best bet for mileage is having your quyadrajet rebuilt and the motor properly tuned my edelbrock 650 had a note on the box that its not meant for any kind of emissions standards in any state so if emissions are high I am sure mileage is low
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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08-07-2016, 09:45 AM
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#4 |
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Registered User
 
Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
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Re: Carb selection
Without knowing your tire size, rear end ratio, or transmission info 3 or 4 speed. mileage doesn't sound that bad. IMO
Desert |
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08-07-2016, 11:39 AM
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#5 |
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Registered User
Join Date: Jul 2016
Location: Sutherlin, Oregon
Posts: 162
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Re: Carb selection
I see the prices on throttle body injection is stating to come down, not sure if I can mention brand names or sources here.
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08-07-2016, 02:36 PM
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#6 |
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Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,516
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Re: Carb selection
A properly setup Qjet is the best carb for a daily driver type of truck. Trick is finding someone that can do a good job.
+1 to Desert's comments on drive train. My 75 350/TH350 with 3.42 rear end gets between 12 and 14mpg highway depending on speed. Just over 12 @ 70, 14 around 60. Point distributor or HEI? Not sure of final year for points. |
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