95hondasedan

hey im finishing up my b20b4 swap in my eg sedan and i was wondering about the 2 pcv valve,theres one on the intake and one on the manifold keep one or keep both? other is vacuum hose routing and lastly that i can think of is does any one know is the bolts for the trans(the ones that mount to the motor) are all the same or are they different sizes. thanks ahead of time