I'm a big fan of Tange HS, but my (old edition) Sutherlands lists 4 varieties of "Levin" and none of them are 33 stack, they range from 34.4 (for an AP-1 OS or Over Sized model) up to 39.6 for a MTB-225, but these are all called "Levins".
The garden variety Levin is spec'd as 37. 8.
Maybe they came out with more lower-stack Levins after this Sutherlands was published...I hope so and if there's one that's 33 I'd second the recommendation!

EDIT: well there ya go, that's a good list to add to my Sutherlands, THANKS JDT. Looks like the Extrude or CDS are the models to find, and neither are in my old Sutherlands...there is a CD (no S) that's listed as 35.8