Then recirc. Unless you have an ecu mapped to fix the overfuelling you'd have on closed throttle with an atmospheric bov. I'm planning on using a map sensor in future which negates the use of recirc
Yep, if you are running a MAF sensor setup then recirculate is the best option. If you vent to the atmosphere you will overfuel on run off, which will stuff your plugs and O2 sensor over time...
i managed to get my hands on a HKS ssqv so ill run it for abit see how it goes to change it to recirc will only cost me £20 for the adapter so its not really any drama