timing gear alignment.

A strange question. I am putting a new timing chain on my 225. A 1976. not the original motor, so it's 76 or newer. It has the peanut plugs. Anyway. the timing marks on the gears are not right across from each other The crank gear has the mark at about 10 oclock which should be right. But the valve gear is also at 10 oclock. It was running pretty good, but the compression on no. 1 cylinder is low, so I am in the process of doing a valve job, and while I'm waiting for parts, I decided to do the timing chain, since I already have that. It looks like the original timing chain and gears, since it has the nylon teeth on the valve gear. But that seems like it's 180 degrees out. Would it even run like that? Anyway happy fourth for those who see this today.