I think it is a vacuum issue caused by the blower. the transition circuit needs to be fined tuned. Its going from a positive pressure to a negative pressure.
X2 I missed the blower on the initial post, tired last night.
Did you boost reference the power valves?
I gave you a link on how to do it in another thread.
I have a whole box of 6-32 set screws if you need some, pm me so I do not forget.
