.045.
.035
.060
No
The spark plug gap for your 1989 Chevy Celebrity 2.8 V6 is .045".
Per Champion spark plug applications chart, the gap for 1989 Chevy 305 (5.0L) is .035.
.035
.045"
What part of it is broken?
0.019
If it is a stock original engine and ignition system the gap would be .035".
The spark plug gap is .045.