This issue is a variant of Master of Kung Fu (Marvel, 1974 series) #38.
Vs. Cat, first. Previous attribution of inks by Jim Steranko on bottom two tiers of page 14 was refuted by Dan Adkins in a letter printed in Amazing Heroes #167 (June 15, 1989). (Error 5274, attachment 232, November 2, 2010).
Apologia plus letters from Clyde Talley, Larry Dean, Jerry Lazar, Rick Werit and Marvel Value Stamp Series B #40 (part of Stan Lee's face)
Stan Lee's Soapbox, Items, illustration of Ikaris of The Eternals (not named)