i have need to mount a kick down bracket. I am not sure exactly how it attaches to the quadrajet carburetor. I know where it should be but i do not know how is actually fixated to the carb (ie what hardware, what holes to align it with). Any help and photos would be appreciated. I have attached a picture of the bracket that i understand to be the correct bracket.

That kick down bracket is only used for the TH400 transmission as far as I know. It is mounted on the driver side rear carb bolt with the tangs on each side of the corner of the carb. This keeps the bracket from swiveling around.

Here's a pic to help
Pretty easy and attaches just like USMC_Ordy descibed

The ST 300's also used the kickdown solenoid/bracket assembly.

The 2 bbl bracket and 4bbl brackets are different.