gt3076r s13rb20

Well I’m at a point where i need to make the inlet for my z32 maf off the new gt30r an I’m not sure if i need to run the 2 pipes for vent an the recirc valve.I’m mechanically inclined an a good fabricator with a tig welder but I’m not sure whatto do anyhelp woild be appreciated

Which is it, are you going to recirculate or vent to atmosphere? Surely not both?

On stock setup it has hose to recirc valve an a hose to vent on valve cover.do i need both of these piped in or can i put a vent on the valve cover