Here is the unit in real life , gotta port and machine the inside radius before welding the surge tank together.
Velocity Style Runners
http://i1121.photobucket.com/albums/...ps48113b2b.jpg
VSR welded and taked to the curved part of the manifold
http://i1121.photobucket.com/albums/...ps906c90c9.jpg
Side View
http://i1121.photobucket.com/albums/...ps842117b4.jpg
Back inside view this part will get a 1/2" weld and a radius will be machined prior surge tank welding
http://i1121.photobucket.com/albums/...psbb4b933c.jpg

