I'm wondering where the best locations to vent the valve cover are on a b18c1 for boosted applications. Is there are right and wrong place to do this? Is it even recommended/necessary for power levels between 300 and 400hp?

 

a b18c1 valve cover has a baffle in the front of the valve cover... but sometimes those hoses can get in the way and can be annoying in the front of the valve cover... you can make a baffle on the inside of your valve cover and run the hoses out the back of the valve cover which would clear space....

running 2 hoses out the back of the block is the best route.... you could do just that....

 

This topic has been discussed a 100,000, times already. A quick search will give you all the info you need. To help you a little bit I'll say this. It's a good idea on all cars even n/a which don't make near the power of a boosted car. 2 -10 or -12 lines from the front of the Vc will be fine or you can go further and do 2 from the vc and 2 to the back of the block. Or go all out and 2 from the front and 2 from the back of the vc and 2 to the back of the block. Take some time and do some reading and you will find everything you need to know.