GRRR!!!! more codes pulled, wtf?!

P0172 and P0175

i had just a 175 before so i assumed it was a bad sensor since i pulled it and it was caked with white coolant (had pulled the head and dumped coolant on it). but now it's both and im pissed.

i can try to clean the maf, but what else? how can i check the fuel pressure? could it be bad plug? what about an adjustable fuel pressure regulator?

is this common to run rich after a headswap? :(
 
sacramento, CA i have no idea what the numbers are right now, but they were high. I failed about a week ago so i took it in and had the o2 sensors looked and they were supposedly broken so i paid for all of that and now i'm thinking it has something to do with maf and possibly old spark plugs maybe??????