Quote Originally Posted by Fbody383 View Post
I had to rethink...

Second race it started making the whirring sound that ended up being a combo of blown out exhaust gasket and EGR port on the passenger side manifold. I R&Rd the manifold gasket and replaced the plate with an EGR tube laying around. I don't think the power has been off the ECM either.
You mean the EGR port on the back side of the passenger exhaust manifold, near where all those grounds attach to the head?