I have this mod as well. My intake manifold is threaded 1/2 pipe inline with the coolant port on the heads. I thread the fitting right into the threaded manifold.
I cannot supply those centre freeze plugs. They were custom made by a friend. Sorry.
Duane can you tell me what headers you are running. I'm doing this same mod but no way the headers cley on the passenger side that I can see. Can you show pics of your headers or mock up? Thanks
