Once you use these you will never EVER go back to the Brass Nuts (that strip and round off), or the barely better 12mm ones out there.

These are a LOT smaller than 11mm on the Head, and the flange keeps the header far enough away from the nut to allow your socket or wrench head enough room to get on and off!

We use these all over because they are so useful. The obvious application is header nuts, when you have a larger than stock header. These even work on exhausts as big as 2 1/4"!!!!! The not so obvious application are to hold down your intake manifold(s)! Now you have a ton of room to use a FAST Ratchet with a long extension above the carb top! You can take a dual carb system off in under a minute after a little practice! Imagine, no more bloody knuckles after an hour of fighting your car!!!!

Each gasket does 2 barrels (can be cut for use with single barrel carbs).
These fit the larger size 44mm, 45mm, and 48mm carburetors.

Proper idle settings are achieved by fully warming up the engine, set your ignition timing, then sync the carbs. Next adjust idle mixture, then idle speed, idle mixture, idle speed, and idle mixture. At this point you are likely not changing anything and you are done!

To set idle mixture, turn the idle mixture screw to fastest idle speed. it's best to turn it in too far 1 bbl at a time (bottom it out lightly, idle speed will drop as you lose a cylinder), and as you turn it out the cylinder will come back, picking up idle speed. Set for fastest idle, + 1/2 turn out (richer). The extra 1/2 turn makes for a more STABLE idle (not a better one).

Note that any time you change the idle speed, carb sync, idle jet size, or ignition timing, you must re-set the idle mixture!

Jets are sized in "milimeters", so a "200" jet is very close to 2.0mm. Actually they are rated on flow not size, after they are measured on a flow machine. That's why drilling and reaming jets is not necessarily a good idea, since drilling or reaming can result in a 180 air flowing more than a 190 air, based on orifice length and entry/exit radius, etc.

For ICTs you should have air jets in the 160-180 range for sea level. For progressives you should have 160-165 primary and 180 secondary. For 3bbl Weber IDAs, start with "Main Jet +50".

These are the smaller size for use on 36mm and 40mm carburetors.

Pair of gaskets will do one carburetor.

Proper idle mixture setting is achieved by fully warming up the engine, set your ignition timing and idle speed. Turn the idle mixture screw to fastest idle speed. it's best to turn it in too far 1 bbl at a time (bottom it out lightly, idle speed will drop as you lose a cylinder), and as you turn it out the cylinder will come back, picking up idle speed. Set for fastest idle, + 1/2 turn out (richer). The extra 1/2 turn makes for a more STABLE idle (not a better one).

Any tmie you change the idle speed, carb sync, idle jet size, or ignition timing, you must re-set the idle mixture!

Hose clamps are not even needed, because the cloth woven on the hose surface acts like a "Chinese finger trap", and keeps the hose tight on the fitting. Some owners choose to err on the side of caution and use clamps also.

Price is for a meter of hose.

You need 2 of these per carburetor.

F7s are best used on centermount carburetor applications.

F11s are best used on dual carburetor applications with venturis 24-38mm.

F15s are best used on dual carburetor applications with venturis 24-27mm.

F2 Emulsions work best on carburetors with a Venturi of 40mm and larger.

This book is KILLER on understanding the operation of the Weber carburetor!

The tab on the float rests against this valve and closes the flow of fuel when the fuel level hits a certain point. Fuel level is adjustable in height by gently bending this tab to engage the needle and seat at lower or higher points. The 200 size is great for engines up to 220hp or so.

The tab on the float rests against this valve and closes the flow of fuel when the fuel level hits a certain point. Fuel level is adjustable in height by gently bending this tab to engage the needle and seat at lower or higher points. The 300 size is best used for engines that exceed 220hp.

Turbo Emulsion Tube, All Weber DCOE, IDF & IDA Carburetors, EACH is best used with BLOW THROUGH turbo applications (turbocharger before carburetor(s)).

Jet Drill (Jet Reamer Kit), .30-2.00mm (30-200 in Jet Size), 30pc Kit is not as good as using the proper sized jet, but drilling is acceptable if you go VERY slowly, and after you arrive at your proper jet size, measure and order the proper indexed jets!

This tool includes jet pins in these sizes: .45, .50, .55, .60, .65, .70, .75, .80, .85, 1, 1.05, 1.10, 1.15, 1.20, 1.25, 1.30, 1.40, and 1.50mm.

This kit includes jet pins in these sizes; 1.50, 1.60, 1.70, 1.80,. 1.90, 2.00, 2.10, 2.20, 2.30, 2.40, 2.50, 2.60, 2.70, 2.80, 2.90, and 3.0mm.

This is a great kit for use with large main jets, and most air jets.

ACN Tip: If you put Chap Stick on the gaskets they will seal better and won't stick!