Magnum roller cam question

I have a 360/390 magnum motor I bought used it was never ran but it had some water damage so I had to take it apart and clean up some rusty parts and reassemble.

It has the 288/292 duration .501/.513 lift hydraulic roller cam 108 centerline. It's been awhile since I put it back together but I think I degreed the cam straight up at 108. Should I have advanced or retarded the cam timing?