i think i may have hooked something up wrong when i did my install on my b16. i am getting alot of vacuum through the vent off my valve cover and i have alot of eratic idle (it goes to 2000 then down to about 900 then back up over and over) if i plug off the valve cover vent with my finger and plug the fast idle valve (i think that is what it is called in the throttle body) it fixes everything. what have i done wrong?

i hooked the nipple off the vent box on the back of the block to the nipple on the bottom of the blower. i think it might have something to do with that but i don't know and the directions suck with this thing

 

bump beacuse mine does somthing similar