Per Langdon's catalog, you should also order the linkage kit. This is no cheapo kit, nice components, which I was able to use with original bell crank, throttle etc. I've compared prices locally and online, Langdon's are the best deal, especially when you consider his support after the sale. The guys at my local parts house didn't believe me re. the price on Tom's H/Ws.
On my 261 it was apparent that the secondaries were way to lean, ended up with #550s and that did the trick. All I did was give Tom a call and he sent me some jets to try.
These H/W jets can be either listed in inches, metric or with mine the flow rating no. 550 (stamped no. on jet). Have also been told that the Weber jets will fit as well as the H/Ws.
Per my contacts with some of the strictly WEBER carb dealers, I get the feeling that they dont really want to recognize thier bastard cousin 'Holley', made in USA versions. Many of the parts appear to be the same but that carb I believe is a mirror image of the H/Ws so parts like chokes are backwards.
