Where can I find some gross jets?

good luck. i'm sure the majority of us have been wondering the same thing

Well, "majority" might be a bit strong. I've used them in an MG years ago, and they were OK. But not something I'm all that concerned about for my Zs.

Don't know if they are still available for Datsun SUs. But here's the contact info:

D & G Valve Mfg. Co. ( Grose- Jet )

8 Mt. Vernon St.

Stoneham, MA 02180