I'm in the process of swapping the manual drum on my '72 to power disc. I got the donor stuff from a '71 Elky. I got the Master-to-combo valve lines and combo valve off the Elky also. Shouldn't the line from passenger to driver side for the front brakes off the manual setup fit the new combo valve or do I have to bend it some? Also, do I need one of those brackets to mount the combo valve or can I just bolt it to the frame with a spacer? Thanks.

Typically the hose mounting tab is in a different location on a drum car than a disc, so no they should not be interchangable.