Weber Dual Carburetor Kits - 40 IDF dual kit, Weber

We've found that dual carbs work better than any single carburator set up. We've done extensive tests on different carbs and it would take hours to explain the pros and cons of them all. Nevertheless, if you would like more information on different combinations, just give us a call and we'll give you the details. Here are a couple of things to to think about. Carbs don't care about the size of your engine. All that a carb knows is vacuum. That's it. Period! Now after saying that, we have to state we find a lot of people over-carbureting big engines. We recommend 40IDFs Webers on built-up 1600cc, as well as, 2007cc motors with compression ratios of 8.5 or lower and 44IDFs for engines with compression ratios over 9. We find that Weber carbs give the best horsepower and reliability over any other carb set up we have tried. Yes, we know they're spendy; but we feel it's the last carb set up you'll buy for your engine. Kits come with carbs, hex bar linkage, manifolds, air cleaners and fuel line. However, the fuel line and the plastic tee are two things we don't like about the kits. Never, ever run American-size fuel line on your motor unless you like engine fires. *Part numbers ending in an E are reproduction Weber parts by Empi.