ok so i got a 93 240sx with a ca18det thats is COMPLETELY stock other than a blitz bov and a centerforce clutch, and well basically it feels like its not even barely boosting at all. i dont think i have a boost leak, i checked today but im gonna recheck it tomorrow, could it be in my side mount intercooler? my uncle said it could possibly be due to not having exhaust (just have the down pipe right now) dont know if thats true but he said it is a possibility. now the other thing is the line coming off the waste gate is capped off (not the line going to the turbo) can someone tell me where this is supposed to go?

any help would be GREATLY appreciated