Mechanical vs hydraulic valvetrain

Thanks for the replies, guys. I'll take some photos when I get home, but looking at photos of cams I don't believe my cam is hydraulic. I suppose I don't understand the oil system.
I have hydraulic lifters as well as socketed pushrods. My rocker arms have the adjuster on them.
I do have a photo of the rockers I believe, I'll upload it now from my phone. I'm at work, I can take a photo of the cam when I get home.

When I said it's a mess, I meant I have mismatched parts and the valve train is covered in sludge and coked oil.