I ALSO WHOLEHEARTILY AGREE.... I messed with the Holley 650 that was on my 350 for a month spent bunches an $ and ended up tossing it and purchasing the Edelbrock 600 electric choke,model "4106" bolted it on and after 5 minutes of tuning I havent touched it since!
My truck rolls over bought a half a revolution and is running ....I love it.
Tim