I'm starting to learn a little more abou the old style injection but I wonder. Is the typical Hilborn setup Alpha "N"?

Abe

Edit:
I decided to give answering some of the questions a shot. If I screw up please someone help me.

1. Typical are TBI, port and direct.

TBI (throttle Body Injection) is better than a carb and is comparatively cheap but is somewhat prone to fuel puddling, is not as fuel efficient as other types, and because of the typical location of the injectors somewhat restricted in airflow capacity.

Port is the best setup currently available but is more costly than TBI. Benefits are as follows. Low incedence of fuel puddling because of the injectors close proximity to the intake valves, ability to distribute fuel to each cylinder as needed and only as needed, possibility of very low profile induction system, and great tuneability in length, shape and diameter of runners.

Direct is still being fiddled with in spark ignited applications but when it does come around we will likely see fantastic improvements in emmisions, fuel mileage and performance.