I recently purchased a new air compressor to replace my worn unit. Old one was a Craftsman 6hp 60 gallon, 10scfm@90psi, oilless noise maker. I had plumbed my garage with a RapidAir kit from Eastwood with 3/8" line. I have a total of less that 50ft of line plumbed. New compressor is 5hp 80 Gallon belt drive, 16scfm@90psi. I have read all the debates of black metal pipe vs copper vs pvc. My concern is will my current 3/8" line put too much restriction on my new compressor and hurt my scfm. Since its there and I have invested $$$$ in the line I would like to keep it, but at the same time I don't want to lose the extra scfm I got from my upgrade. Would it really be worth spending more $$$$ on new line?