Clunk In 3100 V-6

The '95 Cutlass 3100 I'm working on is making a solid clunk when you rev the engine, not under load, and then let off the throttle. I've found some slap in the timing chain, but the car runs well and has plenty of power.
If anyone has any other ideas let me know.

check the dogbones, i had a 94 gp that did the samething and thought it was something in the engine. fought it for days till i leaned in with my hand on it and it moved half an inch.