Anyone tried the Speed Demons with annualr boosters?

[TimDart]

Looking at fitting. 650 version. I'm attracted to the annualr boosters for low to mid range torque and stronger signal. Anyone tried one and able to feedback?
Motor is a well sorted 340 but is in a B body, 340 Roadrunner hence the desire for more low end pick up.

 

[stroked340]

Had one a few years back nothing but trouble all i did was work on it..if you want a GOOD carb look into a Quickfuel been running one for 5 years now,no issues best carb i ever bought..

 

[TimDart]

I was considering QF as an alternative, just lied the idea of snappy and torquey low rpm take offs that annualr boosters are meant to provide. The current batch of Speed Demons are a new design from the old BG carbs that had many faults. But that's all I've read.