The phrase '666 suitcase pulp fiction' is rather cryptic. Regarding the connection between 'suitcase' and 'pulp fiction', in 'pulp fiction' there are often elements of noir and crime. A suitcase could be a key element in a noir - inspired story within the 'pulp fiction' realm. For example, it could hold evidence, money, or some other object that characters are after. It could also be used to create a sense of mystery, as if the contents of the suitcase are unknown and could change the course of the story at any moment.
I'm not entirely sure there's a specific pre - defined connection just from this phrase. 'Pulp fiction' is a well - known movie with various elements like crime, odd characters and non - linear storytelling. A suitcase could potentially be a prop in a story inspired by 'pulp fiction' style, perhaps containing something important like in the movie where the briefcase was mysterious. But without more context, it's hard to say for sure.