General: Track Fork Geometry

Question makes no sense.

Point to the part you're curious about on the picture below.

Well, the only differences are in rake and axle to crown height. Track forks have shorter rake --for a long time Bianchi's was 28mm, most track forks are between 32mm and 38mm. Axle to crown tends to be shorter.

A fork's design is based on the frame's design, and it's not as if all track frames are the same. If you're looking to put a new fork on an old bike, it would make the most sense to look at the fork the bike took originally. If you don't have that info, look at the headtube angle. Steeper angle = less rake.

I'm shopping for a chrome fork.... I would like to tighten up the geometry a little, if possible

For your mystery aero bike? What do you mean by tighten up the geometry?

Uhm, forgive me but... Why do you want less rake? The fork you are using was designed for that bike. Why change it?

You can certainly try to throw a different fork on there. Know that you will have more toe overlap and steering will be twitchy.

You might get lucky and get a fork with less crown height that drops the front end a little to steepen up the steering angle, and has the right amount of offset to make the bike steer nice, but it's a long shot. Slapping on a fork with less offset can be a crap shoot, you might end up with a bike that is twitchy because there isn't enough trail. Trail is the imaginary distance from the contact patch on your tire to where the steering axis intersects the ground.

Track offset rake is 3 degree, road 4 degree. Italian/Japanese builder standard.