Best Carb suggestions?
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
I found a reman q-jet locally for $279.00, Same place I got the one on my 79 Z-28 12 years ago that I have only cleaned with carb clean since then. I'm searching online for a price on the Holley, nobody near me has the speadbore type. I got a Tech at work that has a 5-gal bucket of loose Q-jet parts at home, Can anybody tell me if the bowls are different or what to look for to tell if will replace my cracked one? I was told mine is a 1975 model carb.
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
this what I was asking about from your page "Be sure to get the 108-21 base gasket; very important!" Is that a holley part number I will find where I get the carb?
Race Director
Joined: Dec 2004
Posts: 15,028
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I found a reman q-jet locally for $279.00, Same place I got the one on my 79 Z-28 12 years ago that I have only cleaned with carb clean since then. I'm searching online for a price on the Holley, nobody near me has the speadbore type. I got a Tech at work that has a 5-gal bucket of loose Q-jet parts at home, Can anybody tell me if the bowls are different or what to look for to tell if will replace my cracked one? I was told mine is a 1975 model carb.
Race Director
Joined: May 2007
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From: Out of Site...Out of Mind. Corvette: anything else is just transportation.
St. Jude Donor '09 thru '20
Doesn't matter what carb you get. If you don't set it up for your car, it won't work worth a damn. Trust me.... I know.
Le Mans Master
Joined: Jun 2008
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From: Rockledge FL
Race Director
Joined: Oct 2000
Posts: 15,048
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From: central FL, near the beach.
I dont know anything about the choke. none of my 4165 have a choke - all removed by PO.
The reason i dont like reman qjets is i'v read lars' reports about how they butcher them. In fact, a used correct bowl from your buddy for $50 or less would likely be a better buy than $200+ for a mystery reman.
Last edited by Matt Gruber; Dec 5, 2009 at 04:58 AM.
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Heel & Toe
Joined: Nov 2009
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I am not sure if the stock out of the box spreadbore holleys have the kit for the quick change VS springs, but if not, its worth puting on, along with the site plugs for the fuel bowl level, and they now make a kit called an adjust-a jet, which makes adjustment of the jets as easy as turning a screw, so you can hook up a stoich, fuel air gauge and dial it in perfect.
Race Director
Joined: Oct 2000
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From: central FL, near the beach.
I am not sure if the stock out of the box spreadbore holleys have the kit for the quick change VS springs, but if not, its worth puting on, along with the site plugs for the fuel bowl level, and they now make a kit called an adjust-a jet, which makes adjustment of the jets as easy as turning a screw, so you can hook up a stoich, fuel air gauge and dial it in perfect.
this is why i'm pounding on the table
with the 4165 YOU DONT NEED TO DO THAT CRAP
1. NO VS - so no stupid spring to fiddle with
2. the primarys are properly jetted for chevy V8's, as long as yours has at least 12" vacuum at idle, at or lower than 800 rpm. By proper i mean with a stick, a 350 should get 17-20 mpg at cruise, and a stock BB about 14-16 mpg, if they have a fully separated dual plane.
Site plugs? not needed, once it is set right, it will stay there.
Last edited by Matt Gruber; Dec 5, 2009 at 08:31 AM.
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
This says it is divorced choke.. is this what I need for my stock choke set-up?
http://www.summitracing.com/search/P...5&autoview=SKU
Holley 0-6210 - Holley Model 4165 Carburetors
View Image and Compare
Compare
Carburetor, Model 4165, 650 cfm, Spread Bore, Divorced Choke, 4-Barrel, Single Inlet, Silver, Chevy, Each
Part Number: HLY-0-6210
Estimated Ship Date: 12/7/20
http://www.summitracing.com/search/P...5&autoview=SKU
Holley 0-6210 - Holley Model 4165 Carburetors
View Image and Compare
Compare
Carburetor, Model 4165, 650 cfm, Spread Bore, Divorced Choke, 4-Barrel, Single Inlet, Silver, Chevy, Each
Part Number: HLY-0-6210
Estimated Ship Date: 12/7/20
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
I have the carb and stainless steel gasket in my cart ready to buy at summit . What are you guys doing for a fuel line from pump to carb? When I search summit fot "fuel line" all I get is duel feed lines and braided hoses, I just want a simple steel line to replace the rubber hose and glass filter I have now. Also I'd like confirmation that "devorced choke" is the coil type with the tin box over it mounted to/in the intake? I still might have a fix for my q-jet, found 5 bowles if any of them match mine and will work...Thanks
Pro
Joined: May 2003
Posts: 593
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From: London England
this is why i'm pounding on the table
with the 4165 YOU DONT NEED TO DO THAT CRAP
1. NO VS - so no stupid spring to fiddle with
2. the primarys are properly jetted for chevy V8's, as long as yours has at least 12" vacuum at idle, at or lower than 800 rpm. By proper i mean with a stick, a 350 should get 17-20 mpg at cruise, and a stock BB about 14-16 mpg, if they have a fully separated dual plane.
Site plugs? not needed, once it is set right, it will stay there.
How can one carb be perfect for every application 'out the box'?
Heel & Toe
Joined: Nov 2009
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Well Golden I understand Matt's passion, but what I have found is that you never leave anything static, constant changes to accessories, adding headers, etc., or even saving the carb when you sell the vehicle, makes having a tuneable platform nice because you can keep that carb for future projects etc.
Race Director
Joined: Oct 2000
Posts: 15,048
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From: central FL, near the beach.
It is just a device for mixing fuel wth air. It worked great on my 283 and 350's, and capevettes 427 BB.
I've never seen anyone with 12" vacuum or better and an 800 or lower idle complain about it. Actually almost no one has complained period. So if is not perfect, i don't know what set up is. Maybe i'm over-selling it? Well, i tried oxygen sensor tuning and could not improve on the factory primary jetting. i get 18-19mpg around town if i go with the flow of traffic, no tire smoke.
I've changed cams, heads, intakes, mufflers, it maintains proper mixture with the new combo, unless u allow the high plane to mix with the low plane. That will screw things up. I don't care what else you throw at it, if it idles w/ 12" or better, it knows what to do. Minor adjustments are made with the idle mixture screws. Guys just buy the wrong carb because it gives 10 hp more at 6000. So they give up idle to 5500 for 10 hp at 6000. Then one day they notice bad mpg and then want EFI. Cars in the 60's got 18 mpg on average. EFI is an emmision control device. There was nothing wrong with a proper set up carb. except emmissions
Last edited by Matt Gruber; Dec 6, 2009 at 06:00 PM.
Race Director
Joined: Dec 2004
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I have the carb and stainless steel gasket in my cart ready to buy at summit . What are you guys doing for a fuel line from pump to carb? When I search summit fot "fuel line" all I get is duel feed lines and braided hoses, I just want a simple steel line to replace the rubber hose and glass filter I have now. Also I'd like confirmation that "devorced choke" is the coil type with the tin box over it mounted to/in the intake? I still might have a fix for my q-jet, found 5 bowles if any of them match mine and will work...Thanks
You will probably want to go back with the same type of fuel line setup, ie: one with the positive, inline type fuel filter. The filter on those Holleys are the same as the Quadrajet, spring loaded. After a while of doing their job, they get loaded up with the normal crap from the tank, and fuel pressure will unload the spring and let all of the crap blow past. It would be a good idea to get a steel line to the filter though...
Get me some numbers and I will tell you if any of those bowls will work with your carb.
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
Got my new holley on the way now from summit. I didnt get out to the garage yet to get any numbers for my q-jet parts but I am going to try and salvage that carb to. When I put the new carb on I'd like to improve on my fuel line if possible. Pic below of how I had it just to run on the stand. I have the lower part of the steel line off the fuel pump and up just pass the top of the pump. Any suggestions?
Thread Starter
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
I thought I would do that but all I could find at Auto Zone that had a fitting that would screw into the carb was just a 3" straight tube. I need like a foot long piece. I saw a complete pump to carb factory type line on wilcox site but it said "except holley" Is the 4165 fitting different than a Q-jet or is it just that its bent a little different? Can you put a filter inline between the frame line and the fuel pump and have a solid line from pump to carb?