Searched for 3m Super 33 tape and I found Scotch® Super 33+™ Vinyl Electrical Tape. This is just the plain old black electrical tape, it uses the standard rubber based adhesive that breaks down at 220F and will turn to goo in contact with oil.
Found Year-One Mark, http://www.yearone.com/ and searched for "OEM wiring harness tape,tape, 3m, wire loom" came up empty on all accounts, ya sure that's where you got it from?
Now I’m finding this stuff all over the Net!

Brothers has it listed in their catalog, ¾ in x 50ft for $12, seems kind of pricy for a roll of ¾ in black vinyl non-adhesive tape.
Eckler’s Classic Chevy, $10.99, looks like the same stuff Brothers has.
Eastwood, “dry vinyl, two 1 in x 100 ft rolls for $9.99” (best deal and close to correct width, I think mine is between 1” and 1 3/8”).
Looks like Eastwood’s gonna get an order from me this week.
Thanks guys for your opinions
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL