I was curious about Chan's work on the actual INCREDIBLE HULK series.
Chan did covers on issues 210-220, 222-224, and 226, April 1977- August 1978. Which roughly is the period right after he was DC's cover artist.

https://www.comics.org/series/1866/covers/?page=4

With mostly Sal Buscema/Chan interior art on issues 210-220.


https://viewcomiconline.com/incredible-hulk-v1-216/