i have a 1983 firebird with a 305 and the quadrajet stock in it. i don't think i am getting as much power as i should be out of it and was thinking of getting a new one from online but i don't know much about matching a carb to my engine. i don't want to spent more then 350 on it. mine currently has all the electric pieces hooked into the q jet. when i unhook them they still don't do much i even took the computer out of my car to check and there is no difference so i would like to do away with all computer items needed to keep car running great. and the choke on the car is electric but i don't know how that will work with no computer if it will at all may be someone can help i was even thinking a manual choke. what are the differences.

 

You engine could have as low as 150hp. It was probably not all that fast factory. Also just switching the carb is not going to give you any more power on a stock engine. I would get the car running right first then move to exhaust mods.

 

previous owner did the exhaust from the cat back and put a 3inch line in i was thinking of removing the cat seeing if it was still good.

 

You should get some headers and a new Y pipe too. Stock system is very restrictive

 

if you have a CCC system and you removed the ECU that would make it run bad.
the carb and distributor,ecu all run together.

 

Go to the FAQ forum. In there is a thread about the differences between 305's and performance upgrades for 305's. See where "replace the carb" comes in the list.

Doing away with the computer is counter-productive to good street performance.