What are some sorts of thing that could cause the carb. to backfire up a lil bit when ya give it throttle. i know just about all the possibilities, jus wanna see if there is somethin i missed.

 

mine will backfire through the carb when the engine is cold and i get on it a little too hard.......i'm not sure what causes it though.

 

could be a carb issue, accelerator pump not adjusted proeperly

 

TIMING!!!!!!!! Iam going through this right now.

 

If you had a backfire and you're running a holley, its toast now because you blew out the valve. I had this issue as well and switched over to a Edelbrock and now problem is gone. Also, no valve to blow out anymore...

 

the new holleys have blowout protection on them.

 

Tyler is right timing is what will do it. The carb will not make it backfire

 

That's correct but, so will a bad carb if its has the older Holley and it blew the valve. He could also have too much carb for his setup and that can cause a backfire as well.

 

A acc. pump WILL make it backfire if it doesnt get enough gas, its a lean pop, if its too much it might try to "flood" when the pedal is touched.timing and carb adjustments go together

 

Symptoms of this nature can be several things.

• You could have a sparkplug wire shorting out.

• You could have an electrical wire shorting out.

• You may have some water in the fuel tank.

Let’s take the most common of these three mentioned.

Over the years you cannot keep they fuel tank full at all times.

With a fuel tank half full, the upper part can cause condensation.

This condensation will slowly build up and run down into the bottom of the tank.

When you start to pass another vehicle you call upon the fuel pump to give me more gasoline.

The fuel pump starts working overtime and picks up more fuel, then the water goes into the line along with the gasoline.

The fuel filter catches this water and since water is heavier than gasoline, it drops to the bottom of the filter.

After awhile though, you come up behind me, and I’m not driving quite as fast as you would like to go, so you floorboard it and go around me.

What happens when you floorboard it?

Right, you are asking for more fuel.

With the filter partially full of condensation, water, some of it gets picked up into the fuel line and goes to the carburetor or injector.

“Chug-a-lug, chug-a-lug, Pow!�

Purr, purr, purr.

See what happens?

You can solve this problem, most of the time, by changing the fuel filter two or three times a year.

Now, if you have just filled up at the pump, and your car starts acting this way, you may have to take the fuel tank off and clean it out.

Or, pay someone else to do it!