Holly carb help

Aj- ya its has 4 corner idle screws, and I gave up setting the idle by afr and vacuum because in gear it wouldnt idle without me also tapping the gas too. I have my idle up as once I put it in gear my converter pulls my rpms down about 3-400 lower and the motor just slowly putts out anything less then 700rpm in gear.
No power brakes I'm running just one pcv off the drivers side cover to the underside of the carb like normal.
Also have 180° thermostat aswell.
For ignition I already have a msd 6a box and blaster coil.