Looking to see if anyone else has had a similar issue - my Weber carb on my 22r is leaking between the base plate and the adapter plate that the actual carb sits on.

It has a very noticeable vacuum leak (sprayed with brake cleaner) - it was just installed a few months back. So far I've tried to loosen and tighten the studs to see if that was the issue - no luck

The gaskets on them are essentially brand new - I could try getting new ones (not sure where to buy in Canada ? if someone has a link?)

Everything is tightly bolted down - my next thought was to get some sort of sealant that's fuel resistant but I don't think that's the way to go.

Any suggestions?

 

Ditch the adapter plates and get a one piece adapter or swap to an offenhuaser intake manifold.

 

Where can I find said one piece adapter?

 

What he said!
The two piece adapters are garbage and create the exact issue you are having. I have this one https://www.lceperformance.com/Spira...-p/1033028.htm . Trans Dapt makes one as well https://www.jegs.com/i/Trans-Dapt/969/2181/10002/-1 . I have also seen once piece adapters on eBay.
I used Hylomar Sealant and had no issues with leaks but I only tried it for 6 months or so before I bought the one piece.