I installed my MJLJ few weeks ago. This is my first experimental installation. These will go to my turbo boosted 1600 engine which I am planning to complete in 2-3 months. Current engine is a dual port 1285cc Type1 with dual Weber 36 IDFs, custom ss headers, external oil filter.
Here are some images

Vacuum canister. I'm using MAP option in my setup.

This is a custom trigger wheel bolted to the crank pulley. It is 8mm thick at outer part and 4 mm at inner part. I removed some part of the inner part with lathe. What do you think about this trigger wheel? Does it need any modification to perform better? I also want to lighten it as much as possible. What can be the minimum wheel thickness? Sensor mount is solid, there's no sensible shaking. The gap between the sensor and wheel was more before and it ran perfect. After having this misfiring problem, I decreased the gap. I didn't measure it, remember like 2 mm.


MEASURING THE VACUUM & MAPPING
I had my first challenge with the vacuum signal. It was not a surprise. I only have one vaccum port on my carbs. I tried many ways, but couldn't achieve to dampen the signal. Then I decided to pick the vacuum signal from synchronization tubes. These tubes open to the carb barrels just below the butterflies. There's a continuous signal between 65 and 70 kpa at idel depending on the rpm. I collected all of them in the canister, the signal is now smooth. Vacuum decreases when I push the throttle and at WOT I read 102 kpa. According to what is happening, I prepared the following igntion table. What would you tell about the vacuum measuring method and following ignition table?

* The configuration file is also attached to this post.
MISFIRING
It doesn't happen at the same rpm but 95%of all misfiring occurs at 3200 rpm. It is not easy to tell it with words but I will try. First of all, there is no problem when there's no load. Under load, the engine pulls normally up to 3000 rpm. After 3000, there is a noticeable performance drop and backfiring occurs in the exhaust. If I don't pull the throttle back, rev increases slowly if the load is low and I don't hear the backfiring sound sometimes but the performance is dead. I tried to check what is happening after 3000 rms with timing light (without load, in the garage). It flashes perfectly up to 3500 rpm then it flashes lke randomly. The problem is I don't trust my timing light. It is a very simple and old one. I also checked the voltage supply, car's regulator limits the charging voltage at 14,5 V correctly. Is this an acceptable voltage for MJ, Edis and coil?
What would be the cause of this problem?
I have a spare set of Edis, coil and sensor. If I can spare some time tonight, I will replace them one by one and see if any of them is faulty.
Thanks in advance for all comments and advises!
Ibrahim