https://www.ebay.com/itm/Eaton-Aeroq...8AAOSw4DxaWcSv
https://www.ebay.com/itm/Corvette-NE...oAAOSw61hafKts
I'd find a way to connect these. A PVC system needs to closed (routed from air cleaner to valve cover) to function properly, although open breathers will work. Find a 90 degree end that is threaded in the correct size (the one I posted is just an example).