What is the best mileage anybody has ever got /highway/around town with a carburated

[69sixpackbee]

13 MPG..On a good day

[wwotr]

Originally Posted by ubtripn

350
I will be using it as my daily driver and it will be cheaper than buying a new truck because I won't have a truck payment or full coverage.

[ubtripn]

LOL

I will be going for a Q-Jet as well when money allows. I have HEI, I didn't know that helped.

[Indyuke]

HEI helps with a number of things, but not so much for fuel economy. All things being equal, I imagine you might get 1/4-1/2mpg from it. It helps efficiency by providing a stronger and longer lasting spark in order to aid complete combustion.

I just put that in there to brag... lol, not that it's much to brag about, as most guys runs some kind of elect ignition.

[DANTIP]

I had a 72 SWB with a ZZ3-350, Q-Jet carb, 700R4, and 3:08 rear and would routinely get above 20 MPG on the highway. The combination was PERFECT! The 700R4 has a lower first gear than a TH350/400 so it was more responsive out of the hole and it makes the engine purr on the highway. The ZZ3 improved my mileage significantly over my original (not worn out) 350 (I was not expecting better mileage). I barely had to press the pedal to get up to speed.

[67_C-30]

Originally Posted by wwotr

I don't get what you mean here. Are you surprised he is not going to have full coverage on a 40+ yr old truck?

[1968CHEVYC10]

in my '68 ( see sig) The best I ever got was 14.6 cruising at 55 on the highway. I usually got less than 10mpg just city driving.

But the 350 is gone and I'm about to finish up my 6.2 diesel/OD swap, hoping for 20+ hwy.

[Ackattack]

Originally Posted by DANTIP

I had a 72 SWB with a ZZ3-350, Q-Jet carb, 700R4, and 3:08 rear and would routinely get above 20 MPG on the highway. The combination was PERFECT! The 700R4 has a lower first gear than a TH350/400 so it was more responsive out of the hole and it makes the engine purr on the highway. The ZZ3 improved my mileage significantly over my original (not worn out) 350 (I was not expecting better mileage). I barely had to press the pedal to get up to speed.

I had the same drivetrain combo when I switched to a TPI 350 and it was a dog on the highway. I can't remember if I got 14 or 16 mpgs on the highway with the 3.08 gears. I do remember I picked up 2 mpgs switching to 3.73s. I never was impressed with the TPI engine......maybe mine was week.

Originally Posted by coops714x4

I had a 68 lwb 350/sm465 with a 3.08 rear end on TALL 15"s , if I drove it right "keeping my foot out of it " I would average 17 mpg and on the highway at about 2500 rpm on a good day I have gotten 22 mpg "man I wish I would have kept that truck"

I hope I can get about the same in my 69. Same set up except its a swb (now ) so a little less weight and its lowered, so a little less wind resistance. I haven't checked the mileage since I really started driving it more.

[wwotr]

Originally Posted by 67_C-30

I don't get what you mean here. Are you surprised he is not going to have full coverage on a 40+ yr old truck?

Yes thats what I meant but it was more because,
it was out on MY "Comfort Zone".
My 72 isn't a Daily Driver and I've got it insured for $16K "Agreed Value", after I learned that my Farmers Policy would only pay me approx $7K if my Truck was Totaled, even though I had Much More Invested in it.

Also, just in keeping with this Thread, I'm running a late model 94 350 with 3:73 Gears and a Turbo 350, Edelbrock 4 bbl Crb and 15" Wheels.
I get around 10-12 MPG around Town.
On the Freeway "Fuhget About It". I'm running 2200 RPMS at 60 MPH.

Roger

[67_C-30]

Originally Posted by wwotr

Yes thats what I meant but it was more because,
it was out on MY "Comfort Zone".
My 72 isn't a Daily Driver and I've got it insured for $16K "Agreed Value", after I learned that my Farmers Policy would only pay me approx $7K if my Truck was Totaled, even though I had Much More Invested in it.

Also, just in keeping with this Thread, I'm running a late model 94 350 with 3:73 Gears and a Turbo 350, Edelbrock 4 bbl Crb and 15" Wheels.
I get around 10-12 MPG around Town.
On the Freeway "Fuhget About It". I'm running 2200 RPMS at 60 MPH.

Roger

Oh OK, I gotcha! None of my junk has ever been worth enough to insure it full coverage!-lol

[Classic69]

My '69 C/10 was appraised at $30K, so I got full coverage on it...I was surprised it was only an extra $15/month compared to PLPD, but considering ive been in 2 accidents with it, I figured what the hell, why not...lol...1st time was a deer on the highway 3 years ago, 2nd time was a DUI that ran a red light and t-boned me coming home from a show n shine 2 years ago.

[ubtripn]

HMmmmmmmmmmmmmmm, maybe I should check how much adding full coverage would be. To me it is priceless, to most of the world its worth its weight in scrap metal.