Looking at an air cleaner with "Made in Canada" and 3418717 stamped (silk screened?) on the top side of the base, and three carbs, 4382/2889, 4383/2899, and 4375/2549. Intake is cast iron, haven't looked for any numbers on it yet. Originals? old repops? all showing some age.
Jess

Yeah, it's hopped up to over 160...