[Exspartan36]

I've had this on various cars when working in the garage. A lot of times it's an air leak in the intake side. Like @SimonRoma says Get it to a good indy garage and get them to hook it up to a smoke machine which will highlight the smallest of leaks.

 

[Exspartan36]

Sounds like a great idea. Would love to see your setup once it's done.