Opinions on my charge temps/ AFR please

[luke85]

Im fairly new to engine tuning and am eager to get into it a little more. I drive a Corsa with the vauxhall C20LET engine in, Currently running 1bar of boost with charge temps of about 30 degrees (at about 7 degrees outside), A/F ratio is in the low 11s. Im using a 25%M 75%W mix with the 2D system and i was looking to turn up the boost, my target is 1.2-1.3 bar.

What are the things I should be looking out for and listening for? Is knock obvious to hear? I will be taking it to the rolling road fairly soon but I dont really like it because I dont learn anything, they dont even let you sit in the same room.

Thanks for any opinions/advice