Before you get too excited, try checking vacuum at the engine.  If you vacuum is low there then this could cause your booster problems.  If your vacuum is low then it could be a valve adjustment issue (see www.bostonengine.com for details on that stuff).  Let me know what kind of vacuum numbers you are getting.

Thanks,
Ken Wilford
John 3:16
www.vanagain.com
Phone: (856)-765-1583
Fax: (856)-327-2242