I have a complete set up for a 261. I've never seen this set up. I've seen plenty for 235s but not a 261. I have 2 more 235 set ups with carburetors and 2 additional 1 barrel carburetors. for $125.00 ea. This is a "stovebolt" treasure trove of 6 cylinder parts. $250.00 + $125.00 + $125.00 or $450.00 for all. Tom 650.333.2102