hello, h-t i just finished swapping my b20 into my 95 civic and im using the stock b20z2 intake manifold, (the short one) and i was wondering if i can just cover the hole where the box was at since i dont have it on the intake manifold??
i need to know if the hole can just be straight up covered up. because it sounds like i have a vaccum leak when i turn the engine on, it revs up and down really fast

 

Yes