Originally Posted by janibeans
You're really starting to convince me to pick up a spare manifold and start playing around with it. If all else fails, I'd be out about $100.
If you have a die grinder at your disposal, this is very cheap to do on your own. It's more time consuming than anything else.
I spoke with the owner of this manifold again, and at this time he has elected to remove the manifold and replace it with a stocker. The reason why is because he does not want to spend the money on datalogging, tuning, etc. For a stock tune, at the altitude he is at (7600+ ft) the stock manifold is a better match for his needs than the ported manifold without a tune.
He did note a trip to an area of approx. 3000 ft elevation where the flat spot mentioned previously was not there. Its possible that tuning wouldn't be quite as necessary at lower elevation.
I will likely be buying the manifold back from the owner.