levi corbin

okay, so im fairly new to subarus. i am actually swapping this engine into a 1969 VW squareback, so i want a quick yet reliable engine. but i cant figure out if i need to swap out the SOHC heads for some DOHC to run boost. i also dont know what to do for injectors or the ECU or where the hell to find all this stuff. im a poor college student too, which never helps haha. can someone help me?!