ok, i'm trying to figure out the best way to flow air into and out of my computer. ideally, should fresh air be flowing into the front and out the back or vice versa??

 

IMO it doesn't really matter as long as the air is indeed circulating. If anything, the main goal would be to make sure there's air flow around the CPU, but with modern CPUs, you should already have a fan on top of the CPU heat sink doing that.

 

Most motherboards are specifically designed to best operate with the airflow coming in from the front and exiting out the back. (The power supply, for example, blows out the back and you likely won't be able to change that.)

 

idealy, fresh air should come in at the front bottom, the side, and below the power supply and exit out the top blowhole and through the power supply fan(s).

 

get liquid cooled

 

It is not a big deal. As long as none of the processors are overheating you are good. If they are the computer will freeze and/or restart when you are doing a lot of "work".