Not too long ago, someone posted info on a turnkey restorer for L69 carburetors. Searched, but no luck. Recommendations?

 

Check out "66 3X2" on this site or something like that.

 

In this group Mike knows tri-carbs and sells some great replacement parts.
This place knows tri-carbs and tri-power set ups very well. Don't be turned off by his speciality being Pontiac,they do excellent work.
http://www.pontiactripower.com/
Sparky's can do the job also and he is an Oldsmobile guy.
http://www.sparkyscarbs.com/