Part number on canister is 17056542. I am confident this is original as Ive had this car since mid 90s & got it off an old couple that had it for many years. Wording for hoses from left, carb, tank, purge. Not totally sure on where they go as Ive had a Holley on it, but went back to WW stromburg couple years ago. A workshop manual should show where the hoses go. Also had a look at a 6 cyl WB and same part number on its canister, but only has 2 hoses & a block off cap on the Carb outlet. My HZ 308 sandman I had in the 80s, had canister with 3 outlets, but only 2 hoses also

cheers
Max