What carburetor do you use? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Buckman · 11-30-2005, 11:59 AM

Which carburetor and the size do you ues and the fuel mileage do you get with it?

redhead69 · 11-30-2005, 12:12 PM

2bbl

I think its a Rochester 2g or something like that.. I would guess it gets around 15-17 tops, but havent driven it in 6 months

jsbgump · 11-30-2005, 12:15 PM

I run an edelbrock 1405 and get about 10mpg

farside847 · 11-30-2005, 12:16 PM

I have the 2bbl 2g aswell and get 13-14mpg with a 3.73 rear. I hope to improve that shortly with a 3.08

67ChevyRedneck · 11-30-2005, 12:20 PM

Edelbrock 650 cfm, 350/700R4/3.73, about 15-16 hwy if I can keep my foot out of it, about 13 city.

subtle71 · 11-30-2005, 12:30 PM

I run the Edelbrock as well. However, overdrive is nice! 17mpg highway. I do not know yet on the city driving.

Fatback · 11-30-2005, 12:48 PM

On the '70 Chevrolet LWB,Im using a Holley 600 manual choke, 305 vortec, manual 3 speed, 3.73 rear and getting 15-16 mpg.

724wdcopper · 11-30-2005, 01:10 PM

Rochester Q-Jet. 850 i believe. my mileage is 12-13. 4WD, 32 inch tires, 350 trans, unknown diff gears. this is on a stock 1995 long block with an edelbrock manifold. wish i could have kept the fuel injection, but......

ChevLoRay · 11-30-2005, 02:25 PM

Edelbrock 1901 Q-Jet.....getting an honest 10+mpg, whether parked or on the road. Oh, it's better than the Edelbrock 1405 I had.....by almost 25 percent. Got stock 3.08 gears, with 255-70R15's on the back. Speedometer is off by almost 5mph, at an indicated 55mph....on the cop's side of the equation! I would have to plead stupid, if stopped.

1969 C/K CST · 11-30-2005, 04:24 PM

670cfm Holley Truck Avenger.

crazy longhorn · 11-30-2005, 04:36 PM

3310 Holley, & around 9-10 mpg......depends on how hard i run it

L

boraxman · 11-30-2005, 04:54 PM

Holley 670 Street Avenger. Mileage? We dont get no stinkin mileage

KCW · 11-30-2005, 05:02 PM

770 Street Avenger......Really like it.

matt67350 · 11-30-2005, 05:17 PM

Edelbrock 1406. You'll run it and like it.

MrC1 · 11-30-2005, 05:33 PM

Factory Quadrabog 4bbl (780 cfm?), 11-12 mpg city, not sure about highway. Don't plan any long trips!

'72 C20, 402/700R4 (non-lock), factory 3.54 dana, HEI ignition

I plan on swapping up to a lock-up converter someday. Should help quite a bit I think.

Tropical Snowstorm · 11-30-2005, 05:33 PM

When I had the 383 in my truck I used a Holley 750 dp with mechanical secondaries and got about 8 mpg (driving the snot out of the truck). With the new 350 I have a rebiult Q-jet off of a mid 70's Pontiac, I guess a 600-650 and I get around 18 around town with TH350/3.73's.

jostrans68 · 11-30-2005, 05:44 PM

oe quad runs smooth and get 14mpg around town 350/400 4.10 gears soo to be 200r4 and 3.54 rear gears

stepside454 · 11-30-2005, 06:15 PM

770 Holley on a mild 454 with 3.73s & 275/60/15s. works great never a problem.
mileage? if I keep my foot out of it 10-11 MPG, but why would I want to not play a lil?

Striker169 · 11-30-2005, 06:21 PM

Edelbrock 850cfm and get about 9-10

fastwillie 696969 · 11-30-2005, 06:57 PM

im running 2 edelbrocks 600's and getting around 7 miles to gal

skokie · 11-30-2005, 07:18 PM

Stock 750cc Quadrajet.

68Stepbed · 11-30-2005, 11:15 PM

570 Holley Street Avenger on a GM crate 350, TH350, 3.73 gear. I get about 13 or 14 mpg. It runs ten times better than the 600 Edelbrock I had before.

Buckman, Are you looking at buying a new carb? If so, what will you be putting it on? Is it a stock engine, cammed stock, or modified engine? Or are you just asking out of curiosity?

azgambel · 11-30-2005, 11:26 PM

850 Speed Demon mechanical secondarys.Gas milage?I don't want to know

.

Old Yeller 1970 · 12-01-2005, 12:58 AM

625 Road Demon but don't know about gas mileage yet because the truck is in the paint shop and I just got everything running again.

When I had it on the stock 350 it got about the same milage (but made a lot more power) as the 750 Q-Jet it replaced which was 12-15 MPG.

69-350 · 12-01-2005, 01:40 AM

Quadrajet, with a bad leaking problem. I think it leaks as much as it burns!

so I would put my gas mileage at around... ohh, I'd like to say maybe 8 gallons to the miles :P nah, maybe 8mpg, or less. I don't drive or run it too much, and don't plan to until I get either a new carb or get mine rebuilt. But on a previous trip, I think I probably used two gallons in about a 15 mile run or so. So I would put mileage around 5-8

11-30-2005, 11:59 AM	#1
Buckman Registered User Join Date: Sep 2005 Location: bedford Indiana Posts: 70	What carburetor do you use? Which carburetor and the size do you ues and the fuel mileage do you get with it?

11-30-2005, 12:12 PM	#2
redhead69 fugedaboutit Join Date: Mar 2005 Location: Gresham, OR Posts: 832	Re: What carburetor do you use? 2bbl I think its a Rochester 2g or something like that.. I would guess it gets around 15-17 tops, but havent driven it in 6 months __________________ Currently truckless

11-30-2005, 12:15 PM	#3
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: What carburetor do you use? I run an edelbrock 1405 and get about 10mpg __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

11-30-2005, 12:16 PM	#4
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Re: What carburetor do you use? I have the 2bbl 2g aswell and get 13-14mpg with a 3.73 rear. I hope to improve that shortly with a 3.08 __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

11-30-2005, 12:20 PM	#5
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: What carburetor do you use? Edelbrock 650 cfm, 350/700R4/3.73, about 15-16 hwy if I can keep my foot out of it, about 13 city. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

11-30-2005, 12:30 PM	#6
subtle71 Granddad's Ol' Truck Join Date: Jan 2005 Location: MS Posts: 588	Re: What carburetor do you use? I run the Edelbrock as well. However, overdrive is nice! 17mpg highway. I do not know yet on the city driving. __________________ *1971 Chevrolet Custom 10 short step-side* *2005 GMC Sierra SLT 2500HD crew cab 2wd* [I]1971 Chevrolet Custom 10 Deluxe lwb fleet-side

11-30-2005, 12:48 PM	#7
Fatback Registered User Join Date: Dec 2003 Location: North Central FL Posts: 126	Re: What carburetor do you use? On the '70 Chevrolet LWB,Im using a Holley 600 manual choke, 305 vortec, manual 3 speed, 3.73 rear and getting 15-16 mpg. __________________ 70 C/10 LWB 69 Cougar 68 Mustang 68 GMC 4X4 SWB

11-30-2005, 01:10 PM	#8
724wdcopper graphic designer Join Date: May 2004 Location: Spokane, Washington Posts: 841	Re: What carburetor do you use? Rochester Q-Jet. 850 i believe. my mileage is 12-13. 4WD, 32 inch tires, 350 trans, unknown diff gears. this is on a stock 1995 long block with an edelbrock manifold. wish i could have kept the fuel injection, but......

11-30-2005, 02:25 PM	#9
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: What carburetor do you use? Edelbrock 1901 Q-Jet.....getting an honest 10+mpg, whether parked or on the road. Oh, it's better than the Edelbrock 1405 I had.....by almost 25 percent. Got stock 3.08 gears, with 255-70R15's on the back. Speedometer is off by almost 5mph, at an indicated 55mph....on the cop's side of the equation! I would have to plead stupid, if stopped. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

11-30-2005, 04:24 PM	#10
1969 C/K CST A.K.A- Crummy Join Date: Jun 2005 Location: NC foothills Posts: 3,025	Re: What carburetor do you use? 670cfm Holley Truck Avenger. __________________ 2003 Silverado Z71 Are fishermen all liars?

11-30-2005, 04:36 PM	#11
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Re: What carburetor do you use? 3310 Holley, & around 9-10 mpg......depends on how hard i run it L __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-30-2005, 04:54 PM	#12
boraxman Keepin an eye out Join Date: Feb 2003 Location: So.Cal Posts: 3,920	Re: What carburetor do you use? Holley 670 Street Avenger. Mileage? We dont get no stinkin mileage __________________ 1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351

11-30-2005, 05:02 PM	#13
KCW 1972 GMC 2006 GMC Join Date: Feb 2005 Location: Everett, WA Posts: 96	Re: What carburetor do you use? 770 Street Avenger......Really like it.

11-30-2005, 05:17 PM	#14
matt67350 Registered User Join Date: May 2001 Location: Benbrook, TX Posts: 1,060	Re: What carburetor do you use? Edelbrock 1406. You'll run it and like it. __________________ 69 swb stepside, rebuild and upgrade in progress

11-30-2005, 05:33 PM	#15
MrC1 Dork For Days Join Date: Aug 2005 Location: Dallas Posts: 407	Re: What carburetor do you use? Factory Quadrabog 4bbl (780 cfm?), 11-12 mpg city, not sure about highway. Don't plan any long trips! '72 C20, 402/700R4 (non-lock), factory 3.54 dana, HEI ignition I plan on swapping up to a lock-up converter someday. Should help quite a bit I think. __________________ 1972 C20, 402/700R4 - My first classic truck, bought in September 2005. 85% transformed from "Farm" to "Cool" status! 1970 Dodge Challenger 440, 4sp (my other toy) 12.67 @ 117 MPH, with a pathetic 2.022 60' 2007 Dodge Charger SRT-8 2008 Cadillac CTS All-American garage, baby!



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11-30-2005, 05:33 PM	#16
Tropical Snowstorm Lurky lurky Join Date: Sep 2005 Location: Maryville, TN Posts: 553	Re: What carburetor do you use? When I had the 383 in my truck I used a Holley 750 dp with mechanical secondaries and got about 8 mpg (driving the snot out of the truck). With the new 350 I have a rebiult Q-jet off of a mid 70's Pontiac, I guess a 600-650 and I get around 18 around town with TH350/3.73's. __________________ Current slooooow build 1972 Cheyenne Super 1972 C10, sold thread 1970 Camaro RS Family Heirloom

11-30-2005, 05:44 PM	#17
jostrans68 Jostrans68 Join Date: Mar 2001 Location: Bloomington indiana Posts: 1,182	Re: What carburetor do you use? oe quad runs smooth and get 14mpg around town 350/400 4.10 gears soo to be 200r4 and 3.54 rear gears __________________ [CGTW Member former 67-72 now with a 96 silverado

11-30-2005, 06:15 PM	#18
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	Re: What carburetor do you use? 770 Holley on a mild 454 with 3.73s & 275/60/15s. works great never a problem. mileage? if I keep my foot out of it 10-11 MPG, but why would I want to not play a lil? __________________ 75 GMC C-15 short/step factory 454, lowered

11-30-2005, 06:21 PM	#19
Striker169 Car O'Holic Join Date: Jan 2005 Location: Austin, Tx. Posts: 692	Re: What carburetor do you use? Edelbrock 850cfm and get about 9-10 Last edited by Striker169; 11-30-2005 at 06:22 PM.

11-30-2005, 06:57 PM	#20
fastwillie 696969 ~Rest In Peace~ Join Date: May 2005 Location: CALIFORNIA NOR CAL Posts: 9,707	Re: What carburetor do you use? im running 2 edelbrocks 600's and getting around 7 miles to gal __________________ is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex

11-30-2005, 07:18 PM	#21
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,354	Re: What carburetor do you use? Stock 750cc Quadrajet. __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

11-30-2005, 11:15 PM	#22
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: What carburetor do you use? 570 Holley Street Avenger on a GM crate 350, TH350, 3.73 gear. I get about 13 or 14 mpg. It runs ten times better than the 600 Edelbrock I had before. Buckman, Are you looking at buying a new carb? If so, what will you be putting it on? Is it a stock engine, cammed stock, or modified engine? Or are you just asking out of curiosity? __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

11-30-2005, 11:26 PM	#23
azgambel Registered User Join Date: May 2005 Location: Queen Creek,AZ Posts: 21	Re: What carburetor do you use? 850 Speed Demon mechanical secondarys.Gas milage?I don't want to know .

12-01-2005, 12:58 AM	#24
Old Yeller 1970 DON'T TREAD ON ME Join Date: May 2005 Location: Crosby County, TX Posts: 989	Re: What carburetor do you use? 625 Road Demon but don't know about gas mileage yet because the truck is in the paint shop and I just got everything running again. When I had it on the stock 350 it got about the same milage (but made a lot more power) as the 750 Q-Jet it replaced which was 12-15 MPG. __________________ Old Yeller

12-01-2005, 01:40 AM	#25
69-350 Oil trash and damn proud of it Join Date: Aug 2005 Location: Williston, ND Posts: 1,993	Re: What carburetor do you use? Quadrajet, with a bad leaking problem. I think it leaks as much as it burns! so I would put my gas mileage at around... ohh, I'd like to say maybe 8 gallons to the miles :P nah, maybe 8mpg, or less. I don't drive or run it too much, and don't plan to until I get either a new carb or get mine rebuilt. But on a previous trip, I think I probably used two gallons in about a 15 mile run or so. So I would put mileage around 5-8 __________________ Mark 1997 K1500 Z71, 14 bolt SF 3.73 posi, Bright Blue Metallic. 6" Superlift 1972 C-10, toolbox, p/s, 350/TH350/3.73 open, black int., bronze 2008 Dodge MegaCab. H&S tuned 6.7 Cummins. Fast Four Tons Some of my pics http://s107.photobucket.com/albums/m294/69-350/

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