Before putting on the Webers I had several Holleys on my car.
Each had its Choke hooked up and adjusted properly (electric on the 750s, manual on the 850) and all were completely hasle free.
Give it two stomps on the loud pedal (and pull the choke on the 850) and start.
The 850 with its manual choke required 2-3 adjustments until warm, the electrics worked perfectly all by themself..
The is a reason Holley did include a choke on the carbs
The 48 IDAs are not quite as well mannered, - but heck what do you expect - they donīt have a choke.
I still give it two stomps and it fires inmediately, but I have to keep up the idle a little for a little while. Driveability is pretty good - even when cold.