yeah a video or sound clip would help.
no exhaust blows etc im assuming (stupid question i think but cant hurt to ask)
what cams have you got in there?
does it do it all the time? or just when cold/hot?
I think (if i can remember!) haha that mine has a similar sound on idle, can sometimes be really cammy on idle or sometimes hunt for about 20 secs then settle out to a nice beat
is just the way mine is setup back from tweenie and i love it.haha
what ecu do you have?
it is annoying me but i think i know what you mean, cant describe it though other than how you have! haha