I have had no issues with the half radiator honestly, my temps stick around 180-190ish consistently. Its a Triple core Civic radiator if you are wondering.
The Maft/GM Maf is ok...I am kinda indifferent about it. Its a bit of a pain to try to tune it right, which after some time I got it tuned kinda decent to where the car runs pretty good right now. I am going to switch to V3 very soon and pretty sure I can dial in this car much better to its full potential.