Your tube is about identical to a couple I have sitting on a shelf in my shop. The long side of the "Ell" plugs into a grommet that is fitted into the internal baffle in the passenger side rocker cover, if memory serves. The other, shorter leg, plugs into a short length of rubber hose that is in turn attached to the nipple of the breather "air cleaner" pocket that you will find hanging off the inside of the stock air cleaner body. These can be either white or black pvc plastic and are held in place with a two prong or finger clip than both helps the square shoulder on the pvc body to locate in the matching hole in the air cleaner and secures it in place as well. Rather than trying to buy one, why not take a trip to your local salvage yard and see if they have a bunch of these tubes sitting in a box or pail or on a shelf somewhere or even barn fresh out in the yard if you use a pick your part. The shape of the bend can vary, but it can be compensated for to some degree by using a slightly longer section of rubber hose as opposed to what is there. The hose itself is generic, I used heater hose in the right inner diameter on a few occasions when the old chunk that died from oil rot or heat hardening.
