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What I was talking about was NOT when you wack the throttle but when you are holding it steady at a given RPM when the main is in play around mid range. I also wasn't saying it is rich just wondered if that may be a side effect. Lower RPM slide and main open farther, don't know. As I said before I haven't messed with these vacuum operated slides before just cable operated.
Right, we got somewhat sidetracked. However, you did say you thought the weak spring might cause a rich condition at midrange...
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because the slide and needle could be open at a slower RPM given that less vacuum is needed to open them thus supplying more A/F than required for that given RPM.
I think this implies the same misconception about mixture as the "bog" issue noted by the other poster. A/F is either correct or it isn't. If you get more of it, you accelerate. It doesn't make the motor rich. In terms of midrange, the motor might surge because the weak spring causes loss of throttle control. It doesn't surge because the early throttle opening has changed the mixture.
'08 America Blue/White; Custom Headlamps, Custom Lowers, Clearview 20", Bafflectomy
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