Thanks for the info. Yeah, I am starting to think this Edelbrock LT1 manifold may be the source of my ill's. I swapped over the OEM throttle body and it had no affect, so the 58mm one is back on there for now
Thanks Mitch - you may have hit the nail on the head. I got the OEM intake off the shelf and started cleaning it up for re-installation within the next few days. We will see what sort of effect that has on all of this.
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