Help me out here...I'm wracking my puny brain trying to figure this out.

Engine is a warmed over mopar 360, mild cam, MP ignition.

Why can't I find my timing marks, even with the light forwarded it to 60 degrees of advance? It's pathetic! It used to (before this new problem reared it's head suddenly)run awesome at 18 degrees initial...now it won't run unless I crank it way over...and the range at which it'll even run seems very tiny (IE I don't have alot of leeway to advance or retard the distributer before the thing just up's and stops running...not nearly as much leeway as I had prior). The engine at times runs like it's missing as well...

I've got a new timing chain and damper, so I would highly doubt them being the culprit. The car runs kind of rough, even when tuned by "ear" and is hard to start...it also likes to run hot now, and runs worse with time...

...don't worry about the right answer, but help me brainstorm, PLEASE! ask me anything, I've probably checked it at one point or another...it may help yours or someone elses thought process and ultimately help clue ALL of us in on the problem.

tia, chris