First WI stage before blow-off-valve???

[dsmtuned]

I built my own 2 stage WI system with Aquamist parts. I have a turbo DSM. I have the first nozzle right after the intercooler in the upper intercooler pipe and the second right before the throttle body.

My question is: Should having the first nozzle right before the blow-off-valve (which dumps back into the intake pipe by the mass airflow sensor) cause any misreadings by the mass airflow sensor? I am wondering because I can see in my logs that the barometer changes slightly when I let off the throttle. Not a huge deal, but it changes the fuel mixture a tad.


:?: -- Thanks!