Need a Carb!
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Junior User
Joined: Mar 2007
Posts: 62
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From: Lancaster, PA
Need a Carb!
What Carb would u guys recomend for my 85 f350 460 4spd. Im gona use the truck mainly for towing and plowin snow in the winter. Was thinkin Holley 700 or 750. Dont want to over kill it though. the motor is stock.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
These guys have a special on an Edelbrock right now
I like edelbrock carbs.
hotdeals@cskauto.com <hotdeals@cskauto.com>
see the bottom of page where is says: Hot Deals
I like edelbrock carbs.
hotdeals@cskauto.com <hotdeals@cskauto.com>
see the bottom of page where is says: Hot Deals
Laughing Gas
Joined: Apr 2003
Posts: 837
Likes: 2
From: Minnesota
My carb guy talked me into rebuilding my 4180 again but said if he were going to recommend a new one for me it would be a 570 cfm Street Avenger.
I mentioned a 600 cfm 4160 but he said my mileage would suffer and at 6-7 towing my 5'er and ~10 solo I can't afford that. He didn't like the Truck Avenger for my use either. Most of my running is lower rpm's so he felt the 570 SA would do the job nicely as far as power goes and still not ruin my mileage (like it could be worse) too bad.
I mentioned a 600 cfm 4160 but he said my mileage would suffer and at 6-7 towing my 5'er and ~10 solo I can't afford that. He didn't like the Truck Avenger for my use either. Most of my running is lower rpm's so he felt the 570 SA would do the job nicely as far as power goes and still not ruin my mileage (like it could be worse) too bad.
Post Fiend
Joined: Oct 2003
Posts: 9,176
Likes: 4
From: Western Central NV
Originally Posted by ClydeSDale
My carb guy talked me into rebuilding my 4180 again but said if he were going to recommend a new one for me it would be a 570 cfm Street Avenger.
I mentioned a 600 cfm 4160 but he said my mileage would suffer and at 6-7 towing my 5'er and ~10 solo I can't afford that. He didn't like the Truck Avenger for my use either. Most of my running is lower rpm's so he felt the 570 SA would do the job nicely as far as power goes and still not ruin my mileage (like it could be worse) too bad.
I mentioned a 600 cfm 4160 but he said my mileage would suffer and at 6-7 towing my 5'er and ~10 solo I can't afford that. He didn't like the Truck Avenger for my use either. Most of my running is lower rpm's so he felt the 570 SA would do the job nicely as far as power goes and still not ruin my mileage (like it could be worse) too bad.
Laughing Gas
Joined: Apr 2003
Posts: 837
Likes: 2
From: Minnesota
Like I posted, he talked me into giving the 4180 another try so for now the Street Avenger is just an idea. Haven't installed the carb yet since I got it back. I've been playing with adding a microswitch for the secondary linkage and installing another tranny cooler while I wait for the power valve protector that I ordered to show up.
http://www.powervalveshield.com/
http://www.powervalveshield.com/
Senior User
Joined: Jul 2006
Posts: 462
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i got a edl 600cfm edl carb on a 400 with a 2" spacer. runs good and strong. i love it. and as far as gas goes if you want good gas milage buy a new truck but if you love your old ford then just remember these boys where built when gas was like .50 .99 a gallon. times have changed so now it seems outraguoes to fill them up today. just think i drop about 100.00 a week in gas in mine and sometimes more.
Cargo Master
Joined: Dec 2004
Posts: 3,362
Likes: 22
From: Florence, SC
He didn't like the Truck Avenger for my use either. Most of my running is lower rpm's so he felt the 570 SA would do the job nicely as far as power goes and still not ruin my mileage (like it could be worse) too bad.
ClydeSDale, did your carb guy tell you exactly why he didn't like the Truck Avenger? I was thinking about getting the 470CFM Truck Avenger for my '85 302. The reason being the smallest size the Street Avenger has is a 570CFM, and that might be too much carb for my little stock 302. After looking at their website, Holley describes the Truck Avenger as "metered for towing and incredible low end torque," so I would think the Truck Avenger would be the better choice? I would like to know exactly why your carb guy didn't like the Truck Avenger, before I run out and get one.
ClydeSDale, did your carb guy tell you exactly why he didn't like the Truck Avenger? I was thinking about getting the 470CFM Truck Avenger for my '85 302. The reason being the smallest size the Street Avenger has is a 570CFM, and that might be too much carb for my little stock 302. After looking at their website, Holley describes the Truck Avenger as "metered for towing and incredible low end torque," so I would think the Truck Avenger would be the better choice? I would like to know exactly why your carb guy didn't like the Truck Avenger, before I run out and get one.
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Moderator
Joined: Jan 2001
Posts: 56,999
Likes: 2,747
From: Virginia
All of these "new" Holley carbs are just fancy versions of the plain old #1850 600cfm 4bbl carb that Holley has sold for years.
When you pay extra money for the truck carb, you are getting a carb that has special features for off-roading with the truck bouncing around and driving on steep slopes, plus you are getting the new fangled quick change secondary springs and an electric choke and power valve protection. I did notice they had a different main booster too.
The street avenger is the same as the above, without the special off-road features.
I have run the plain old #1850 600 cfm with manual choke on two different 302 engines with good results. They were not too big for the engine.
I just get the feeling all these "new" models Holley comes out with are hyped up a little too much for sales purposes. Some of the added features are nice, but I think the ones that really work they should add to all their carbs, and the rest are just marketing ploys.
When you pay extra money for the truck carb, you are getting a carb that has special features for off-roading with the truck bouncing around and driving on steep slopes, plus you are getting the new fangled quick change secondary springs and an electric choke and power valve protection. I did notice they had a different main booster too.
The street avenger is the same as the above, without the special off-road features.
I have run the plain old #1850 600 cfm with manual choke on two different 302 engines with good results. They were not too big for the engine.
I just get the feeling all these "new" models Holley comes out with are hyped up a little too much for sales purposes. Some of the added features are nice, but I think the ones that really work they should add to all their carbs, and the rest are just marketing ploys.
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Laughing Gas
Joined: Apr 2003
Posts: 837
Likes: 2
From: Minnesota
Dave summed it up pretty well ... most of the differences are more promotional than physical.
I can't pretend to have the 30+ years of carb experience that my carb guy has but if you're in theTwin Cities area of Minnesota I can make a good recommendation for a very reputable and experienced shop.
Just found his web site and ebay site when I poked around a little bit.
http://www.carbshops.com/
http://stores.ebay.com/THE-CARBURETOR-SHOP
I can't pretend to have the 30+ years of carb experience that my carb guy has but if you're in theTwin Cities area of Minnesota I can make a good recommendation for a very reputable and experienced shop.
Just found his web site and ebay site when I poked around a little bit.
http://www.carbshops.com/
http://stores.ebay.com/THE-CARBURETOR-SHOP
Elder User
Joined: Mar 2004
Posts: 517
Likes: 2
From: Texas
All 80's model Ford truck engines are cammed for high torque low RPM, 4.9L through 7.5L. Installing a larger than necessary carburetor is a waste of money if no other changes are made. The 570CFM is plenty for a 7.5L stock engine.
Moderator
Joined: Jan 2001
Posts: 56,999
Likes: 2,747
From: Virginia
Remember most of the time you are only running on the front 2 bbls of the carb, so that's half the cfm. And the back 2bbls are metered by the vacuum diaphram and the spring, so they only open as much as the engine can take. Kind-of a mistake proof self-sizing feature.