Is there a flexible line that can be used to run from the cp3 to the fuel rail????or has anyone tried anything other than the hard line...
Can't you make a set of flex lines from stainless steel 10 AN line kit from Jeg's Race Kit? They offer several sizes for good prices, lengths, etc. for applications that rubber isn't maybe what works best when it gets real hot and high presssure. I used one from lift pump to filter to replace rubber parts under cab. Other options are out there though.
Id think you'd want a material that can handle minimum 30k PSI, just for safety's sake. LBZ makes max 26k stock, doesnt it?
ON EDIT: Look up Parker Polyflex hose. If it can handle diesel fuel, then that may work.
I know that you could source the hose from a water jet company but as for fitting that would be the biggest problem IMO