how many MPG do you get?

[jonathan-m]

I have a 350 SB with a 4- barrel edlebock carb in my '66 stepside and although my gas gauge doesn't work, I think I average something like 10mpg... pretty crappy
Of course, I don't really practice many economical driving habits ( read: I have a lead foot )
SO I'm thinking that could have something to do with it....

Whats your configuration and what do you all get per gallon?

[alexxwing]

well when i was driving on the freeway with my 327 4 speed granny tranny i could see my gas guage go down haha so im guessing bad mpg

[sixfour4x4]

i don't want to know.i've got a 350 4bbl edelbrock carb 650..i just know that i spend ~60$ a week...and i don't drive much....and i also do not have a soft foot, i leave a rubber trail on my way to work to make sure i can find my way home

[BMSJaX]

SBC 350, Q-jet 4 bbl, Holley Street Dominator Single-plane, 190 degree thermostat, 1-3/4" primary to 3" headers and cherrybomb turbos and i'm getting 12mpg street/15highway.

[ruffrida2005]

I've got a 350, stock heads built, enlarged valves 2.02/1.60, Flat tops, comp cam 489 lift duration, roller tips, air gap intake, Holley 750, Hooker shorties. I was getting less then 10 before the rebuild with better parts.

[jwart]

65 fleet lwb, 327-2hump heads - ramhorns & dual pipes, performer intake, came with 850 qjet - stock 3 spd -411 open rear end. was running 9-10mpg with it. next came 750 holley & th 400. for 10-11mpg. holley 650 & 3 mo. of adding 2 oz. acetone to ea. tank now getting at least 12 if not leaving forensic clues at the scene of the crime. shopping for 600 carb & starting on ram air scoops in hood as we speak. still getting better than 12 yrs. in junk heap it had b4 i found it.

[MacAttack]

Not directly related, but my 65' Chevelle with a 350 crate motor and Edlebrock 4-barrel 650 cfm gets 12 mpg - on the freeway - if I just go a steady 65 mph on flat ground. Never get better than 10 mpg driving around town.

Mac.

[1Bad62Pro/Street]

Since my truck is on Jack Stands....... 0 mpg....
Ha ha..... Sorry. I had to! Can't really remember what she got before.
15mpg on the highway I think if I kept my foot off of it.
http://67-72chevytrucks.com/vboard/s...=321173&page=2

[dallas71]

BMSJax, what transmission and gears aare u running?

[ChiefRocka]

[ob1monkey]

running a healthy 350 with block hugger and 3 inch pipe t-5 and 3.08 posi out back getting 15 highway 12/13 city used to get 15 city and 17 highway before I added the the cam and heads.

[jonathan-m]

Well at least I'm not alone
I can't tell you how many times I've run outta gas on the interstate in this truck. I fill her up using the 10mpg average to guess how much I need, and usually that works just fine if I drive nice and steady... its when I start hitting the high numbers on those long stretches of road... its all fun for a while then its cough.. cough... put..put.. and your on the side of the road. I always carry a full two gallon spare gas can in the back for this very reason

[BMSJaX]

Originally Posted by dallas71

BMSJax, what transmission and gears aare u running?

I'm running a Munice 4-speed (m20) 2.56/1.91/1.48/1.00 i belive and 3.54 or 3.73 cant remember and cant find the paper i have it all written on

[07SSSC]

I was pleasantly surprised to find I got 12-13 mpg on my recent freeway trip which was about 140-150 miles total. Turned 4000+ rpm (according to stock tach) at 65-70 mph most the way too. 383 stroker, 750 Edelbrock, decent cam, stock THM350, 3.73 and relatively small diameter tires. Around town? 8-10 mpg.

[Bazooka]

anybody running a 700r4 and around a 3:73 gear? If so whats your mileage?

[Corts60]

Also, not my GMC, but my Nova SS gets 15 MPG on the highway. I'm running a 396 with a 650 Holley, Saginaw 4-speed and 2.41 limited slip.

[07SSSC]

Originally Posted by Bazooka

anybody running a 700r4 and around a 3:73 gear? If so whats your mileage?

x2?

[jbgroby]

I get about 12 mpg going downhill with the engine off becasue of the big V-6

[TR65]

My DD is a C6 Vette and I average 22+ mpg driving back and forth to work and around town, but I drive pretty mildly. Key is good engine and good gearing. That's why I am prepping a 6.0 LS2 with T56 6-speed for my 65. I am counting on getting over 20 average. Will let you know by Christmas.

TR

[Jackjohn]

I have to kill mine at the gas station or the gas pump can't catch up!

John
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[bschoolz1]

any one know what a 230 stock gears get no gas gauge

[Sharps40]

1964, 117000 miles on original 283, Rochester 2G carb. 3 speed 318 trans w/3.73 rear gear, factory size/width tires on original wheels.

14.5 combined city/highway. Occasionally as high as 16 if its mostly highway and I keep the speed around 60 or so.

[steve'62]

350/350 combo, edelbrock 4bbl, pulling 11 miles to the gallon. Seems like everybody in the same ballpark!
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[hd74]

1962 gmc suburan 454 with 700r4 qjet ,i think a 307 rearend .i get 13 to 15 mpg or i can get 00000

[kerber63]

When I was running my 350 with a big Qjet, camaro T5, and open 3.73, I could get 18 highway. Hoping to improve with a 454 with rebuilt Qjet, camaro T56, and posi 4.11. Wish me luck.
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