73 nova air conditioning removal

hi, im pretty new to all this car resotration stuff, and im at a poitn where im nto sure what to do. ive got the frotn end of the car compeltely stripped, engine and trans are out and subframe is off. i was looking at the air conditionign unit the other day and decided that i woudlnt really need air conditioning in the car. id liek to remove all of the elements, and already have removed teh compressor and hoses connecting to the box on teh firewall. my question is that if if i take off the box on teh firewall will i disrupt andy otehr elements in the car such as heating and what not? woudl i have to get a new heating box or soemthing to put in place of the air conditioning box on the firewall? also, on a diferent note, what size carb should i get for a 350 engine? i mean like 600 or 650 cfm, or what? im really clueless as im not sure what the difference is. okay, thats all, thanks for your help, its much appreciated. -danny

Yeah,you can take it all out and swap one in from any 68to 74 without air so you will still have heat and defrost. For a carb ,try to stay small ,550-600 to keep good throttle response. Hank