The TS head is quite good.
It's a kind of mix of the Honda D16 and B16A heads: chamber like in D16 and ports like in B16A.
Unlike Honda heads the Alfa ones are not well finished.
Comparison with the Honda D16 and B16A heads (picture from the ENDYN page)
On the ENDYN's D16 head all valves were unshrouded as valves are too close to the walls.
The pictures show how sharp is the short turn radius of the intake ports
The long section between the bowl and port entry is straight and of right diameter
Exhaust ports are excellent but the bowl area was smashed during the seat installation process
Note that there is a water passage inside the port divider
The divider is offset in the port, like on B16A heads.
Intake runner output is excessively rounded, its section is bigger than the intake port size