I'm sorry I have not been present in this thread since I started it.
To start off I believe you are mistaken or you have not read the OP closely.
Originally Posted by lukeskywrx
Those top ones are JDM AVCS cam pickups, the WRX does not have rear sensors. The WRX has a front cam sensor the USDM STI does not have. you will have no cam position sensing.
It sort of seems like you dont know what you are talking about since the way you are setting it up it will not be able to run.
The top picture is NOT JDM heads it is a WRX cam in USDM single AVCS head.....
Now the reason I asked the question is simple I'm run non AVCS cams in an AVCS head. (there is many reasons why people do not want to run AVCS in big builds)
I have done exactly the above setup in several cars but all of them run a standalne ECU, in the 06 GC/STI I was hoping to run a stock ecu since the advance in speed density and tuning of the 32bit ECUs is quite impressive.