I have a 2010 hcr with a twisted turbo kit. the blow off valve is open when the sled is at idle, is this normal?. if not, is it adjustable and how to do it? it is not stuck open, it moves a bit with the throttle rpm. the vacuum line attached to the top has very little vacuum at idle. any help would be appreciated...Does anyone have a phone # to contact Shain Stanger?