The springs on a Q-jet are used to close the carburetor when you let off the throttle. Look at the throttle and install the springs to pull the throttle closed. Most Q-jet brackets have holes for the springs to attach.
Rochester Quadrajet
Yes. There are books dedicated to the Rochester Quadrajet.
Originaly, a Rochester quadrajet. However, edelbroc, and Holley both make a replacement that is worth consideration, and the cash outlay.
That would be a Rochester 2-barrel are a 4-barrel Quadrajet. You did not say what size. This would not be what they call a FEEDBACK carburetor
The original equipment manufacturer (OEM) carburetor for a 1977 Chevrolet El Camino with a 350 engine was typically the Rochester Quadrajet. This four-barrel carburetor was commonly used in various GM vehicles during that era, providing a balance of performance and fuel efficiency. Depending on the specific model and options, the Quadrajet could have variations in tuning and specifications.
If it has a Rochester carburetor (like the quadrajet) it is actually located inside the carburetor where the fuel line attaches to the carburetor. To access it, remove the fuel line then remove the filter housing by loosening the large hex bolt you just removed the fuel line from.
The spark plug gap for a 1970 Blazer 350 is .035. Check new plugs for correct gap even if they come pre-gapped.
Rochester Quadrajet.
Could be the idle is set too high, maybe the mixture screw passageways are plugged up.
A 1993 Chevy does not have a carburetor, it is fuel injected.
It doesn't have a carburetor.
Rochester Quadrajet