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hellcruzer
06-15-2009, 09:40 AM
I got a 1975 Ford F-100 with 1971 Ford 460. It has a edelbrock torker II manifold and a Holley 3310 780 cfm carburetor and a electonic ignition and is converted to unlead fuel. The gas mileage is horrible. I want to change out the holley with something else. I have seen that this Holley can be upgraded by installing a ProForm carburetor main body, the Proform 67101C. Is this the way to go or do you have any better suggestions

tomtoc
06-15-2009, 09:46 AM
how bad is "horrible"?

have you done a general tune-up recently? fluid change, plugs, wires, etc?

welcome to the forum, too!

TexasRho83
06-15-2009, 10:04 AM
I don't know of any 460s with good gas mileage lol

tomtoc
06-15-2009, 10:10 AM
I don't know of any 460s with good gas mileage lol

yea, if you're getting 8-10, be happy

if it's worse, there might be something we can help you with. any more information about the truck? 2wd 4wd, big lift, tires?

TexasRho83
06-15-2009, 10:12 AM
All the more reason why my rig's a weekend warrior and not a daily driver - especially with gas prices going up again.

hellcruzer
06-15-2009, 10:43 AM
how bad is "horrible"?

have you done a general tune-up recently? fluid change, plugs, wires, etc?

welcome to the forum, too!

Thanks, I have the fluid and plugs changed not the wires. I have tuned the ignition. On a long trip I will say 12 mpg but in daily use about 5 mpg and the gas is not cheap in Norway

hellcruzer
06-15-2009, 10:46 AM
I don't know of any 460s with good gas mileage lol

I was afraid of that:) But I did't think it was going to empty all the oil fields in the world all alone

hellcruzer
06-15-2009, 10:53 AM
QUOTE=tomtoc;240436]yea, if you're getting 8-10, be happy

if it's worse, there might be something we can help you with. any more information about the truck? 2wd 4wd, big lift, tires?[/QUOTE]
It's a 2wd, tires are 255/60R-15
850

tomtoc
06-15-2009, 10:53 AM
On a long trip I will say 12 mpg but in daily use about 5 mpg and the gas is not cheap in Norway
12 sounds about right (if not great) on the highway, but 5 is pretty low. are towing, running big tires, odd gear combination?

hellcruzer
06-15-2009, 11:16 AM
12 sounds about right (if not great) on the highway, but 5 is pretty low. are towing, running big tires, odd gear combination?

No towing, tires are 255/60R-15, C6 auto and I think the rear end is 3,73

tomtoc
06-15-2009, 11:18 AM
No towing, tires are 255/60R-15, C6 auto and I think the rear end is 3,73
all that sounds pretty normal.

i used to get about 10/12 in my 97 f250. getting 5 in town, then 12 on the highway is weird. if i drove it pretty hard, it'd drop to 8.

maybe someone else will have some input to help

SuperCab
06-15-2009, 11:18 AM
milage sounds about right to me...

5.0Flareside
06-15-2009, 12:05 PM
yeah its pretty close to normal. just gotta make sure the carb is working good and make sure you drive like a grandma if you want any better gas mileage.

hellcruzer
06-15-2009, 12:18 PM
all that sounds pretty normal.

i used to get about 10/12 in my 97 f250. getting 5 in town, then 12 on the highway is weird. if i drove it pretty hard, it'd drop to 8.

maybe someone else will have some input to help

It is an old holley, if I should change it,do you have any suggestion to a new carb?

smokey
06-15-2009, 12:19 PM
Sounds about on par with the one I had.
If I drove it like it had a egg on the gas pedal I could get a little better about 7.
If I mashed the skinny pedal I was getting about 5-6.

hellcruzer
06-15-2009, 12:28 PM
Sounds about on par with the one I had.
If I drove it like it had a egg on the gas pedal I could get a little better about 7.
If I mashed the skinny pedal I was getting about 5-6.

LOL I just got plates on it and like to push the pedal to the buttom:) I better put a egg on the gas pedal

TexasNomad
06-15-2009, 12:54 PM
I have to say unless your 460 has been cammed out or had some other performance mods done to it, I think a Torker 2 manifold and a 780cfm carb is to much for a bone stock engine even if its a 460..
for a stock 460 you should just be running a Performer manifold and 750 carb.

SuperCab
06-16-2009, 11:18 AM
LOL I just got plates on it and like to push the pedal to the buttom


yup. There's your problem...

TexasRho83
06-16-2009, 12:22 PM
Lead feet + big blocks = bad gas mileage

My 400BB, C6 auto, 36" TSLs would get around 12-14 mpg on the highway. City was more like 8 or so... but I dont have a lead foot unless I'm at a red light and some riceburner wants to play "Who has the loudest exhaust" with his coffee can muffler

countryboytn
06-16-2009, 03:04 PM
but I dont have a lead foot unless I'm at a red light and some riceburner wants to play "Who has the loudest exhaust" with his coffee can muffler

I can see this playing out in my head.. :rolling laugh:



not to get offtopic, but am I the only person here who want's a diesel just so I can smoke out ricers? :wasntme:

TexasRho83
06-16-2009, 03:22 PM
not to get offtopic, but am I the only person here who want's a diesel just so I can smoke out ricers? :wasntme:

Not to help you get off topic, but I would love to see it... my buddy has a smoker cummins with twin stacks but they're in the bed. Can't really get inside a ricer's cab like side exhaust

hellcruzer
06-25-2009, 03:54 PM
Not to help you get off topic, but I would love to see it... my buddy has a smoker cummins with twin stacks but they're in the bed. Can't really get inside a ricer's cab like side exhaust

With sidepipes and a 460 you leave the one inside the ricer's cab shaken:rolling laugh:

LEB Kris
06-25-2009, 03:59 PM
Get rid of that intake. Its absolutely killing your motor. Single plane low rise turd nugget. The carb is also WAAAAAY over sized as well.

A performer (non-rpm) and a Holley 670 would be a great choice.


and ummm some of us miss the 5mpg days. :-D



EDIT:
Give me some specs on the engine. Compression Heads Cam etc

TexasNomad
06-25-2009, 04:24 PM
I have to say unless your 460 has been cammed out or had some other performance mods done to it, I think a Torker 2 manifold and a 780cfm carb is to much for a bone stock engine even if its a 460..
for a stock 460 you should just be running a Performer manifold and 750 carb.

Get rid of that intake. Its absolutely killing your motor. Single plane low rise turd nugget. The carb is also WAAAAAY over sized as well.

A performer (non-rpm) and a Holley 670 would be a great choice.


and ummm some of us miss the 5mpg days. :-D



EDIT:
Give me some specs on the engine. Compression Heads Cam etc
Hey! thats what I said! but none listen to the Tex...... :rotz:

hellcruzer
06-25-2009, 04:44 PM
Hey! thats what I said! but none listen to the Tex...... :rotz:
I have to say unless your 460 has been cammed out or had some other performance mods done to it, I think a Torker 2 manifold and a 780cfm carb is to much for a bone stock engine even if its a 460..
for a stock 460 you should just be running a Performer manifold and 750 carb.

I will listen to you Tex.....:) It have been done some work to the engine since it's converted to unlead fuel. If it's cammed out or have some other performance mods I don't know. Mybe I should try to get me a performer manifold and a edelbrock 750

polarbear
06-25-2009, 04:52 PM
Get rid of that intake. Its absolutely killing your motor. Single plane low rise turd nugget. The carb is also WAAAAAY over sized as well.

A performer (non-rpm) and a Holley 670 would be a great choice.


and ummm some of us miss the 5mpg days. :-D



EDIT:
Give me some specs on the engine. Compression Heads Cam etc

smilieIagree

And if you knew what this guy was paying at the pump for fuel, it'd blow your mind.

hellcruzer
06-25-2009, 05:03 PM
smilieIagree

And if you knew what this guy was paying at the pump for fuel, it'd blow your mind.


I hope you all will sleep to night but I am paying about $8.50 for a gallon :hammer:

TexasNomad
06-25-2009, 05:06 PM
Jesus!!!!!
how can people own cars there.

hellcruzer
06-25-2009, 05:28 PM
Jesus!!!!!
how can people own cars there.

The gas price is one ting but cars isn't cheap either. Norway is a big producer of oil but that dosen't help us. The goverment want us all to go with bus or train. So I can tell you it's hard to be a american car enthusiast.

TexasRho83
06-26-2009, 09:12 AM
I hope you all will sleep to night but I am paying about $8.50 for a gallon :hammer:

Time to move...

LEB Kris
06-26-2009, 09:23 AM
110 is about $8-9 a gallon.

hellcruzer
06-26-2009, 04:26 PM
Time to move...

Norway is not the best country to live in for an american car lover but it has other qualities. I love to visit USA:-) and hope to come back soon..

Mil1ion
06-26-2009, 06:34 PM
That Manifold is designed for running at a constant HIGH RPM not driving around town.

You need a performer type manifold and a 600 CFM edelbrock then drive like there is fresh egg under the gas pedal.

hellcruzer
07-04-2009, 05:39 PM
I got some spec on the engine: the cam is a Edelbrock Performer. The duration of it is 272 (intake) and 282 (exhaust), and the valve lift is .460 (intake) .480 (exhaust) and the part # is 2167. That part is out of a PAW catalog.

TexasNomad
07-05-2009, 12:48 AM
Thats a RPM range of Idle-5,500.
That Manifold is killing you, its Basic Operating RPM Range is 2,500-6,500 rpm.

miottimouse
07-29-2009, 07:08 AM
i aggree get rid of the intake and holly carb a performer intake with an edelbrock carb [600 to 700 cfm] is a good combo for a stock motor them hollys just dump fuel and you can never lean them out like an eddy another thing you can look at is a gearvenders over drive trans my trucks both have them and they work great if you running a 3.73 rear end your rpm will be about 2800@100 kph[60 mph] a gearvenders will cut that to about 2200 [-600 rpm or so] not a cheap conversion either but we pay $1.00 ltr for gas in alberta and when i can get 2 to 3 mpg better it pays for itself also look at getting rid of the steel fan and going with an electric fan/relay setup worth at least 1 mpg on the highway not turning that big peice of steel
hope this helps regurds joe