carburetor infamous PING (vacuum issue)

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AJ/FormS said:
Rusty's right and so am I. You are he vacuum gauge on the wrong port.
So With the gauge on the MANIFOLD vacuum port you use Rusty's method.
Then with the gauge on the sparkport; It should read little to nothing.
Click to expand...

okay ... timed vacuum is far left which is what the V-can is connected to and what gave me a reading of 5 inches.

the middle is connected to my valve cover PCV valve.

and the far right is manifold port which reads 25 inches.

i have... <-- 1411 edelbrock carburetor.

i feel completely stupid right now, what did i miss?


sorry, yeah i guess i didnt understand it. #17 let me re-read.


when you say spark port that = manifold vacuum port? #21 indicate spark port = timed vacuum port.
 
No need to feel stupid. We all gotta learn some time. You're askin questions. That's bein smart, not bein stupid.
 
okay lets take a few steps back, so how do i lower my 5 inch reading to 3/4 to zero?

timed vacuum = 5 in <-- i need to lower this one to 0 / 3/4?

manifold vacuum = 25 in
 
34-35 sorry... Okay I will read it. Just noticed it was thee.... Thanks

What's the spark port? I'll be back .... Reading :reading:
 
Well car runs better when warm but now am getting low idle sputter or knocking when cold in the mornings.

again i am a NOOB so excuse my lingo.

any insight to this?
 
So what are your latest changes?

The fuel level is correct________yes?
Transfer ports are synced______yes?
Idle-timing is_______________Degrees
Power-timing is_____________Degrees_
All in at___________________RPM
Mixture screws at____________Turns out
Manifold vacuum at idle is____________inches
Vacuum(timed) at the sparkport is_____inches
The vacuum advance can is hooked up?_______yes?

What is the morning temperature down there these days? Does the car need choke? It seems to...
Choke is operational_____yes? And properly adjusted____yes? And the vacuum break is optimized_____yes
And the electric assist is hooked up_________yes? And the fast idle is about 1500 +/-200 rpm_______yes?.
Quote this post and fill in the blanks.
 
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