Take a look at the pic. You will notice that if the jet is drilled for a 150 main or 1.50mm  it would have a strait hole like the inside part of the  RED walls. The down side to this:  As the flow of fuel increasess it starts to cave in on it's self and the volume amount of fuel  would be less as the rpm's increase.The higher in the rpm your motor is turning the leaner it gets.

If you are not going to get the jets from us, than please do not call us  and ask what jet your motor needs. If you need to ask.... wy?     Then read this  page one more time or click here for more info..

But if it is reamed with a taper  to the sise of the 1.50mm like a funnel see the  BLUE walls this will allow the fuel to flow more freely. The help of the extra flow increase will match the tapred hole of the aircorection jet.Yes the aircorcetion jet has a taperd hole from the factory. This way your motor will not run rich in the mid range  and lean on the top end. At LowBugget  we do this to all of the idle and main jets from day one.

Here at LowBugget.com we have earned our name in this industry as a leader in research and development of the Kadron 40/44 EIS carburetor. We contentiously discover new ways to make the kadron carburetor  perform at its best for thousands of miles trouble free. We had to change this “Jet Help Page” do to the poor quality of jets that are sold by  other shops. It would start with you calling us or sending off an e-mail asking for the correct jet size for your motor combo. We would tell you to use a xxx jet and you would then call some other shop and place a order. It's not that we are mad at  you for not placing the order with us (jets are only $8 each and we cant keep the shop open with $8 sales), So if you call some other shop and order the jet number I recommended  (lets say 150 main jet) the salesman at that other shop will grab a main jet marked 150 and ship it to you, But the jet could flow more like a 156 or can even be the opposite and only flow around 147. Now your car runs like crap, you may have ran lean and burnt a piston. The first thing you do is go and preach to all of your friends and post up on some VW forum saying:   "I used the exact jet size that Mr.Kadron from LowBugget.com said to use and it now runs like crap" We did not say to run a 147 main jet. Do to that type of problem we stopped giving out jet sizing info completely.  If you want our help in setting up the correct size jets for your combo then order your Kadron jets from us.. So whats different from a LowBugget.com jet and a jet from some other shop? We think in pairs!!!  This means that each and every order of jets are machined as a pair and not just drilled in a large batch of tens of thousands. Yes all other shops will offer you a drilled jet that was made on a assembly line and is “about” or close too the size stamped on the end of the jet.  Thats why our idle and  main jets are not the same or even close to the jet sold at others shops. A good example of the difference in our jets is how we convert to a different numbering system that helps us precisely make extremely small changes in a jet size when machining and matching.

How to adjust:       Mixture       Idle      Accelerator Pump      linkage How to change:    Main Jetting and needle valve      Idle Jets     Venturie.   What Kadron fuel filter? "Check out the New Help section" Click here     Back to the Low Bugget site     Parts for your Kadrons    Race Tapes

The fuel goes in at the top and exits out the bottom

What size jet should I use?