Originally Posted by Rocket42

Swede its hard to say what stock needle settings are on that carb because there was a revision to the LSN. Its best set the idle gap then put the engine on the box and lean the HSN so it clears out on top, and then back it off 1-2 hours. then set the LSN on the box and clear out the engine by revving it. then listen for the engine to come down to idle fairly quickly and cout to 6 and then grab full throttle. you should richen the LSN until it has a slight bog before clearing out after the 6 second count. You will know its rich because you should see some fuel being spit out of the exhaust. After you do that set your idle and you should be close when you get on the track.