No power with 10° base time. (pics)

My car is a 1987 GT Coupe 3s-fe, manual transmission. The 3s-fe is a JDM unit from 1996.
When I did this swap, I deleted the A/C and power steering. I also plugged the A/C and power steering vacuum ports on the intake manifold.

When I first got the car, I distinctly remember the distributor being all the way in the counterclockwise position, or, about 10°
it had good power all the way up the RPM range.

But after I replaced the engine, I had to set the base time at about 15° to get somewhat normal power but it still isn't quite right; I still don't have good low range torque.

So my question is: What are the inputs to the computer for the electronic spark advance? RPM, temperature, vacuum?

just to be sure i don't have to timing belt installed wrong here are pics i took today:
the mark on the crank pulley has silver paint on it


you can see that the mark is right behind the hole


also, i'm always sure to check the timing with the electronic advance disabled

 

I'm using the original USDM manifolds, injectors, and EGR.


whats this about my GE style ECU? I thought the GT in america was only FE and FE ECU

 

EGR goes to a port in the head. this engine had a threaded plug in that port

 

I removed the EGR plug and installed the EGR just like it was on the old engine.
also used new spark plugs with the correct gap.

I've adjusted the timing several times, getting less torque the closer I get to 10 degrees and less high RPM power the closer i get to 20 degrees. IT makes me think there is an airflow sensing problem.

 

I discovered that using 93 octane fuel really helps out a lot!; especially at full throttle. Full throttle works like never before; it pulls strong even a 6000 rpms! It has never done that before.

Makes sense too because I hear that the Japanese market engines have higher compression. Also, it is a 1996 engine.

I think if I bump the base time down to about 13 degrees, I should get better torque