Timing chain and gear set for small-block
I use a Cloyes in my 340, has over 50,000 hard street miles and a full season of drag racing and is tight as it was when new. I bought this unit twenty years ago when I originally built this engine.
For my 318 for the cuda I bought a Mancini racing house brand double roller timing set, it was the cheapest available and was an upgrade over the stock stuff that had a plastic coated cam gear.
For street use I would think any double roller timing set will be fine, never heard of one failing.
Bob