The lumps I made ,I did talk about a few years ago, you asked me about it then.
I did not have a digi camera then (to send any pics) ,so it just got forgotten about?
It is bolted through the upper headbolt area (one bolt,no drilling required. I machined a piece of aluminum, sorta like a piston pin button,this piece sits on the outer part of the head, a bolt goes through it to the upper lump that is drilled & tapped. A little Hylomar applied the the piston button like piece.
The lump goes all the way to the back of the port & help direct the air fuel mixture to each valve.
I will see if I can take some pics today.


12 port SDS EFI