NA6 chassis + eudm vvt motor w/2560r + braineack ms3x

I religiously followed the VVT megathread for wiring and install. I will be putting the engine in its new home and turning the key this weekend if not today after work.
Before I get on with it, there's a couple things I'm unsure about.
1) tune - do I adjust my current 1.6 tune or upload a fresh 01 basemap from trubokitty and start anew?
2) vvt control - i have my 12v coming from the injector harness, where exactly do I send my signal wire? I considered omitting my boost controller and sending the vvt signal to the maf plug temporarily but i will inevitably want both.
3) tachometer - the wording in the swap thread is a bit confusing to me. I fused the yellow/blue and black/white wires where the ignitor was, is that all I have to do to get my dash to work or is there something more?

 

You tweak the basemap you already had. You do not load the basemap for a different chassis.

I also used the 12v from the fuel injectors for my vvt solenoid and had it go back to the ecu with a vvt trigger. Polarity doesn't matter.

Which coils are you using for the vvt swap? Coils dictate what happens to the tachometer.

 

Im using the VVT coils, per the megathread.
what TS settings should I be changing? Or do all the wiring modifications omit the need to change anything?

 

I wish I had more info for you. Unfortunately I went with the ls585 coils on my vvt swap. But, with that said, the LS coils do not provide for an igniter either. I ended up running a wire from my megasquirt output wire specifically for tachometer and ran it directly to behind the gauge cluster on the tachometer input. That is how I solved my problem with tachometer.

 

Tachometer worked right out of the box. I turned on tach control in TS and it worked fine. Had to change sensor type from 4g63 to 99-05 miata and to falling edge ignition.
still not sure about vvt control, but i have other issues to address for now so it can wait.

Edit:
Tach was reading wrong and flicking at certain rpm. 1k resistor in diag box fixed. Vvt signal wire was soldered to pin 24 (or 27? - Nitrous 2) of one of my ms connectors - matched it up with trubokitty assembly guides.