Fwoooosh, woooosh, and loss of power

[Matt S.]

Car: 89 200, equipped with DV, K24 turbo, chip, etc.
Issue: Fwooooooooooooooooossshhhhhhhhhhing

Above 3000rpm (in boost) I get a constant fwooshing
or, more appropriately(but less fun to say), a
'wooshing' sound.
Actually, more like dry leaves in a tree rustling--but
thats a strange example.
Below 3000rpm, nothing like that.
When I lift off the throttle, I get a crashing of air
(not a whistle like a BOV)

I'm going to assume this is the DV, but I'de like to
get opinions first :)

Oh yes--and my RPMs fall slowly :/

Thanks!
-Matt

89 200
Slower traffic move right, please!

__________________________________________________
Do You Yahoo!?
Yahoo! Sports - sign up for Fantasy Baseball
http://sports.yahoo.com