If it gains its lean, if it loses more than a small amount it may be rich. The holley street avenger model 4150 four barrel carb is the ultimate vacuum secondary street performance upgrade. Considerable mystery surrounds the tuning of the secondaries on a holley carb. I had him pull it off and i plan to check it all out top to bottom but i. Holley carburetor 670 cfm street avenger 4barrel electric. Holley carburetor full power circuit calibration guide. How to adjust the air mixture for a holley carburetor it.
As mentioned earlier, by selecting the correct spring for the vacuum chamber, you take care of 90 percent of the tuning. Holley 4 barrel carburater information list numbers and stock jetting. Holley street avenger 4150 carburetor basic tuning guide episode. My buddy says i paid too much for it but, it is what it is. Holley street avenger carburetors 080670 free shipping. Autorestomod manic mechanic gasoline media 56,932 views 28. The vacuum secondaries are controlled by a diaphram and a color coded spring. Holley street avenger carburetors come with features to make tuning your car simple. You can change the springs and change the opening moment. And all of this comes with a silver or coloranodized finish thatll look great. Holley street avenger carburetors 080670 summit racing.
Holley street avenger 4150 carburetor basic tuning guide episode 219 autorestomod duration. We take an out of the box 670cfm holley street avenger from summit racing and explain the functions, tune it in and plop it on our 1969. Holley street avenger carburetors free shipping on. Street avenger carburetor holley performance 0 80670 4 bbl 670 cfm model 4150 vacuum secondary electric choke gasoline dual fuel inlet 1. Holley 670 street avenger 0 80670 3 calibration holley 670 street avenger 0 80670 3 calibration. Choosing the right power valve for your holley carburetor.
Theyre calibrated to deliver the performance that you need, without the tuning headaches involved with other carbs. Throttle bore shiny zinc finish from pace performance a leader in holley performance 0 80670 carburetor for your car. And as soon as you break open the seal to see what you got you cant return it so you are screwed. One of the things we noticed over the years is the lack of information concerning holley list numbers and the specifications for individual carburetors and their stock jetting. Theyre calibrated to give you the performance that you need, without the tuning headaches involved with other carbs. In fact, it is not at all complex, but it can be time consuming.
This item is a remanufactured holley carburetor by national carburetors. This 4 barrel carb is street ready right out of the box and features a calibrated electric choke, air and fuel adjustments and built in fuel filters. Street avenger carburetors include quick change adjustable vacuum secondary tunable from mild to wild, gen iv no trouble power valve, clear sight plugs for easy float adjustment, builtin fuel inlet filters, electric choke and four vacuum ports. It said it was a holley trick kit but it wasnt it came in trick kit box but it was just a standard kit. Properly adjusting a holley carburetors airfuel mixture is one of the most commonly overlooked and important considerations. Should you need information or parts assistance, please contact our technical service department at 12707819741, monday through friday, 7 a. Holley 080670 holley street avenger carburetor 670 cfm. Holley 4150 670 cfm street avenger carburetor 080670 ebay. I have a friend that bought a street avenger new about a year ago and it has ran ok but not spectacular. How and why to adjust a holley carburetor accelerator pump. Quick change vacuum housing cap allows you to tune for performance or fuel economy springs included. There are clear sights for easy float adjustments, adjustable vacuum secondaries and four vacuum ports. I gave it to them, and they told me it was one of a bad batch of carbs that had a problem with the casting process for the metering plates, that literally caused them to begin to fall.
Holley street avenger carburetor, 670 cfm, electric choke. There are a number of ways to tune the moment when the vacuum secondaries open on a holley four barrel carb. A mixture which is too rich, meaning the mixture does not have the proper quantity of air, can result in fouled sparkplugs and poor gas mileage. Holley performance street avenger carburetor 080670. Holley performance 080670 street avenger carburetor ebay. Customer service was friendly and helpful with the fine tuning, positive feedback. Street avenger carburetors are known to bolt on right out of the box and have great features such as a quick change vacuum secondary for easy fine tuning. Holley 080670 street avenger carburetor 4bbl 670 cfm. Theyre calibrated to deliver the performance that you need, without the tuning. Holley 4150 670 cfm street avenger carburetor 0 80670 street avenger carburetors are known to bolt on right out of the box and have great features such as a quick change vacuum secondary for easy fine tuning. Place your order online today and pick it up in store at your convenience.
These instructions must be read and fully understood before beginning installation. Choosing the right power valve for your holley carburetor april 14, 2015 randy bolig drag race 101, general engine, guest columns, howto and tech tips, tech 5 when it comes to tuning a holley carburetor the power valve has always seemed a mystery to many. If you have an automatic transmission you will need a vacuum sec. Holley s street avenger 4barrel carbs give you troublefree performance in a goodlooking, easytoinstall package. Get product details, choose a store, and get directions. Holley holley 0 80670 670 cfm street avenger carburetor, vacuum secondary, electric choke, shiny. All of holley carburetors are 100% wetflow tested to assure it arrives ready to run right out of the box with no tuning. It can replace holley, edelbrock, carter afb, and autolite style carburetors with 5 316 x 5 58 bolt pattern. This model of carburetor has the square bore flange bolt pattern. Designed for use with the holley carburetor shown above.
Remove the throttle stud and nut from the original carburetor. Holley carburetor set up and install tips and tricks episode 218. Holley carburetor rebuild kit for 080670, 080770, 090670 and 0. From everything i read it seems like its a good solid performer. Me being me, i had to test it out so i bolted it on the 360 and fired her up. In operation, the accelerator pump is connected by a linkage to the throttle butterfly shaft. Please have the part number of the product you purchased on. All the tuning in the world could not correct this. A carburetor heat insulating base plate to intake manifold gasket.
If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. How to adjust a twobarrel holley carburetor it still runs. Failure to follow these instructions, including the pictures may result in subsequent system failure. Holley 080457s carburetor installation instructions.
We also have more holley carburetors to choose from. And all of this comes with a silver finish that looks as good as it performs. Holley includes the correct fuel line kit so installation is that much easier. Holley, street avenger carb, 670 cfm, electric choke designed specifically for the street enthusiast. Holley street avenger, model 4150, list 080670, 670 cfm 4. Compatible with gm, chrysler, and ford at kickdown. I am helping my son work on a holley street avenger 650 model 4150 list number 80670 1. She definitely needs to be cleaned and tuned as well as gone through.
Holley street avenger, model 4150, list 080670, 670 cfm 4barrelvacuum secondary. And all of this comes with a silver or coloranodized finish thatll look. Holley s street avenger 4barrel carbs offer troublefree operation in an easytoinstall package. Look at the jetting on a 650 dp, its 6773 on later calibrations with a primary pv. Bring the rpms up to about 2500, put your finger over an idle air bleed see if it gains or loses rpm. Holley 670 cfm street avenger carb shiny finish hly080670. Ive got a holley 600 vac secondary on my 355, its got ported sportsman iis, a hot cam, single plane weiand, and true duals ive got a holley red pump and regulator, set to 5 12 psi fuel level is below the sight plug on the float, adjustment screws are about as lean as you can go on the carb. Holley fr80670 670 cfm street avenger carburetorfactory. If this manual is not fully understood, installation should not be attempted.
We take an out of the box 570cfm holley street avenger from summit racing and so a basic tune on the carburetor and talk about some of the. Details about holley 0 80670 670cfm factory refurbished street avenger 4bbl carburetor. The curb idle speed screw allows for adjusting the rpms to the correct level when the vehicle is idling in gear, while the idle mixture screw sets the correct rpm level when the vehicle is idling in park. If you know enough to be dangerous when tuning your carb, but not enough to get it right, you need to read this. Holley 670 street avenger 0806703 calibration page 2.
Holley 080670 670cfm factory refurbished street avenger. Holley carburetor specifications, list numbers, jetting. Holley makes a number of different springs with different tension on the springs. When properly adjusted, there will be no hesitation or stumble when the throttle is opened. Holley 0 80670 670 cfm street avenger carbelectric choke vacuum secondary. Holley carburetor rebuild kit for 080670, 080770, 090670 and 090770.
You take the engine cubic inch and multiply by the maximum rpm and divide by 3456. The holley twobarrel carburetor is designed with two adjustment screws located near the base of the carburetor. I contacted holley for some pointers, describing my problem, and they asked me for my carbs serial number. You will need to know the basics about how to work on your holley, and a book or two will really help a bunch, because of the pictures and part numbers in them. If this manual is not fully understood, tuning should not be attempted. The accelerator pump circuit s in a holley carburetor acts to smooth the transition between the idle circuit and the main circuit. The holley 670 cfm carburetor features quick change vacuum housing cap which allows you to tune for performance or fuel economy.