Mr Fixit,
Yes, I have side hung floats and as I recall when I pulled the float bowl apart, the floats were square shaped with rounded corners - I guess you could say they look sort of like a fat whislte when looking at them from the side. These are Holley 4150 600cfm carbs and I'm running 66 jets. The plugs run a nice tan color.
I really meant I adjust the hex screw/nut (whatever they call this hybrid) - just trying to say it simply.
I'm not familiar with the term "vent tubes" or "baffles" and tried looking the terms up on the Holley Web site. They have something called "idle discharge passage, idle transfer passage and idle discharge hole." Is this what you are refering to as vents? I couldn't find anything I'd call a whistle shaped baffle. Are baffles some aftermarket thing you stick in the bottom of the float bowl, but aren't normally included as part of the carb when you buy the carb - sort of like the baffles in racing
oil pans? The Holley web page showed a baffle as part of the needle valve assembly but it looked like a square box and not like a whistle. I drive it both on public roads and 3-4 times a year on a Grand Prix style track. So I don't want to make mods that are not streetable.
Thanks