info on throttle linkage
I agree with RIck. It's been a LOOONNNGG time since I've had a Mopar/ Holley, but seems to me I used to put a bolt in the hole UNDER the very large hole to get enough "throw."
First order of business is to see if the carb works OK on it's own.
I don't know anything about those brackets, but my cable bracket were always lower vertically than this one.