Holley 4010/4011

I just came up with one of these for another (non Mopar) project. It's #84021-1 (4011, 650 vac secondary spreadbore).

I know Holley was real proud of these carbs in the late 80's but they dropped them 10 years later. I have some theories why that was, but thats not my question.

Anybody running one of these? Ever run one? Good? Bad? Ugly? Worse than my warped Q-Jet?

Most of my Holley experience had been with gold old 4150/4160's. Supposedly these use most of the same jets/PV's/pumps/squirters etc.

Should I monkey with it or eBay it and try something else.