Summit shows a Cloyes True Roller timing set, CLO-9-3137, for $93.88.

Jegs, P/N 220-9-3137, $93.99

BTW, to properly adjust timing on a GM TBI-equipped vehicle with ESC (Electronic Spark Control), you have to disable the ESC or it's impossible to get an accurate reading.

The ESC wire in a Trooper 2.8 is under the front tray in the center console and is the only wire in there with an inline quick-disconnect. You undo this wire, then the timing can be checked/set.

One last thought, if the crank gear was not replaced and only the timing chain and cam gear done the last time, this would accelerate chain wear. I'd definitely insist on all-new components, and the H-D timing set like that Cloyes should be quite durable.

Here's a link I found to a standard Cloyes timing set and damper:

https://secure7.nexternal.com/share...CategoryID=2&Target=products.asp

Also found this little tidbit on a site devoted to the Citation X-11:

"Cloyes True Roller - 9-3137 $85 (preferred) The stock chain dampener is not used."

Guess that's something good to know, I'd certainly confirm it to be true or not upon assembly. Might be something about the true roller chain that doesn't work with the stock damper.

G'luck.......ed