How do i change my 350ci TBI engine into A carburated car?

Answer 1

I like what you are doing, I hate fuel infection "injection". depending on the year of the motor, you should change the intake manifold, and probably have to do something w/ the throttle linkage/ cable, then put the carb on and tune it. Personally I would go w/ the edelbrock performance intake manifold, and the 600 cfm edelbrock carberator, but if you really want to get serious, you should get a cam shaft to match your application. If you do these things, depending on the year of the vehicle, I would recommend putting on an HEI destributer, and w/ a few modifications w/ the wiring, you would have one heck of a motor. and carberators are not a thing of the past,they are much cheaper to work on, and any average joe, backyard mechanic could do it. But I agree w/ you throttle body injection is junk, and you have a limited amount of power you can put through an engine w/ that. If you do all of these things, you are pretty much eliminating all of the computer crap that deals w/ engines today, just adding raw horsepower. good luck

Answer 2

Carburetors are, for the most part, a thing of the past.
The only place carburetors still have a use is in short track racing where fuel is not an issue, and only because of their ability to deliver raw fuel in quantities far greater than any injection system could ever dream of doing.
But in day to day driving, a carburetor is a waste of fuel and at higher rpm's provides for ineffective acceleration.
The carb can and does provide for great starting acceleration, but at a high fuel cost, and the higher the rpm's go, the more fuel has to be dumped straight in, that is to say for racing applications it is not unusual to stack 3-4 carbs in a row and in effect provide a barrel (or two) for each cylinder, that is how much fuel they have to dump.

That having been said, more than likely you'll be looking at replacing the intake manifold, and the throttle control system.
Depending on your onboard computer, there may be a few emissions-related issues, but basically your computer will no longer meter out air or fuel to the engine, your motor will be down to its rawest, simplest form.

As for fuel mileage, the guys using carburetors for racing apparently have no issues with paying for the rough equivalent of the fuel the space shuttle consumes on take off.

Answer 3

Remove the intake manifold and replace with several offered in the 2007 GM Performance catalog. This catalog is part number 19170580. They are available at any Chevrolet dealer. This catalog has a new issue Holley 670 cfm. vacuum secondary carburetor with an electric choke which would work very well on a Chevy 350. The GM PN. is 19170092.

Answer 4

youll need a new carb and intak. before you take off anything remove the radiator cap and look at the rotor when you put the distributor back it has to go back just like it is. now pull the intake and clean all of the surfaces and when you put the gaskets on put ultra black silicon on ithe engine side. put the gaskets on the engine exactly where they need to be and let them set for 12 hours. if you dont the little black seals on the front and back of the engine will slip and leak. then put it all back together. attatching the fuel line may take some cutting and hose clamping and you may need a fuel pressure regulator. then set your timing and your ready for some gas guzzlin.

Answer 5

As mentioned you can change, but you will no linger pass your SMOG inspection, and will be required to change back to make street legal.