Shiny! Are you going to tap and run a screw into the air injection holes?
This reply is to Mark and Ark,
What is the benifit to plugging them?
I always remove the emission tubes and plug the exhaust manifold pipe ports,
But have never plugged those on the heads.
I have never had a problem with the numerous trucks that I have done.
Could there be a problem with vapor lock or something?
Please teach me about this and I may always do it in the future.
If I was running headers I can see why,
But these will be bolted to the stock M Manifolds.
Its just going to be slighly modified stock,
just below having to have a stall converter.