Originally Posted by JANNETTYRACING
A simple fix is to restrict the vacuum source to slow the closing of the bypass.
You can use a motorcycle carb jet in the bypass tube I would start around .030
What's that going to do for opening? Seems like it would delay that too?
PMJ, 2 is a little low I think. Not sure why yours is acting that way. Maybe the bypass is getting stuck. Seems like a crappy design.