Im new here but could use some help. I'm getting my '81 F100 back on the road for my daughter and need a new air injection tube. It's a 300 straight 6 and I'm in California so I can't just do without. The last time it broke the dealer said it is no longer available so I fixed it. Well it is rusted out beyond repair now. LMC truck sent the wrong one and my local parts store can only get the wrong one. This one curves up in the back to accept a vacuum switch that is also connected to the exhaust. I bought the truck new and this is how it came. Does anyone know where to get one or how to get around this issue without moving to another state?