Just purchased a few radiator hoses for the 65 fleet. I think this is the only place you can find the upper radiator hose for an Air car. Fits like a glove and looks good too. The owner Craig answers the phone and has a world of knowledge, very helpful.
I also bought my 400 rebuild kit from Super Cars. All quality parts, ground the 66 stock stick 442 cam for me to the 65 cam angle for $20. Fast shipping and my engine builder was impressed with the quality. A friend of mine also bought the same rebuild kit with a 66 cam and has it in his 65 442. He's very satisfied and the engine runs strong.
Again parts are a little pricey but very good quality. Super cars has been around 25 years and Cutlass 442 is all they do. I highly recommend them.