I'll concur, from my own experiences with my '77 Camaro 305, that the Cloyes Plus-Roller chain set I put in it at about 92K was still in it when we swapped the 305 for a 350 at about 625K miles. If it would last that long in a Chevy, it would probably be "forever and forever" in a Chrysler engine.
I could hear a little "bicycle chain" noise at idle, but I knew what it was and that was fine. Just like some guys with gear drives like that noise, too.
IF you upgrade from the stock cam, then you can also upgrade to the 3-bolt set-up on the cam and timing set. Otherwise, you've most probably got the stock 1-bolt set-up. IIRC, the 1-bolt set-up also has a locating dowel to ensure things stay where they should be, cam sprocket and camshaft interface.
To me, the main advantage of the roller chain set-up is long-term durability insurance, no more, no less. More than with the stock-replacement steel cam sprocket timing sets.
As a side note, as the timing set does not receive any direct oil, just "splash", I coated the rear of the cam sproket with moly cam assy lube, plus some on the chain/sproket interface, and then poured some of the old 1-pint GM EOS over the installed chain assy. That way, just as with the new cam lobes, there was lube there when the engine was startedfor the first time. Might have been over-kill, but that's fine, too, in this case.
I consider Cloyes to be a premium product. Mellings is good too, for oil pumps, although thehy have seemed to expand their product lines in more recent times. FWIW
Just some thoughts and experiences,
CBODY67