Screaming Edlebrock HELP!!

[Ericram]

This one if for you edelbrock experts. I have a 350 engine with a 600cfm edelbrock and if I get on the gas good enough the carb will scream like hell as long as I keep my foot on gas. If driving below 60mph the carb is fine but once I get it going just over 60 the carb starts to scream. I've noticed it only started doing that recently as the weather got colder. What is it that I can do to eliminate the screaming sound period besides waiting for SPRING WEATHER!

[Ericram]

oh and the sound is pretty close to what it sounds like when belts are screaming/screeching. that's what I thought it was so when I went to check the tension I was suprised to see the belts were fine. thank you guys for your time!

[TheSeeker]

Are you running a stock intake as well? Or an edelbrock intake? If you have an adapter it might have a vaccum leak. Mine did it when I first put it on because I didnt tighten it down enough. Screamed like a banshee

[dznucks]

there is a vacuum bleed on the electric choke mechanism. I've had one whine at idle before.

[rob32472]

Very simple solution. Remove, buy a new Holley and replace! Seriously had same issue and it was the electric choke as someone said earlier... good luck

[72chevyk10]

if it sounds like air sucking in thats the secondarys starting to open up. usually if its a vac. leak it'll run bad. or try spraying belt dressing on the belts, mine were squellin once and they seemed tight, but i sprayed em with the dressing and it stoped makin noise

[Murphy IRE]

Hmmmmm! I was told I was drinking that there isn't any vacuum on the choke. Mine was leaking and making a whistling noise. I made a temporay plug to end the leak and she ran better! I will have to have someone read this thread!

[swamp rat]

Originally Posted by Murphy IRE

Hmmmmm! I was told I was drinking that there isn't any vacuum on the choke. Mine was leaking and making a whistling noise. I made a temporay plug to end the leak and she ran better! I will have to have someone read this thread!

What did you plug? where?

[dznucks]

there is a vacuum bleed in the electric choke housing. its purpose is to keep the bi-metallic coil from over heating.

if you use a stethescope you can hear it. they can build up some gunk over time and make a more noticeable whistling noise. i am not sure it this is your problem though.

[bignbad]

Very simple solution....Put a factory Q-jet on it

[Ericram]

@72chevyk10- it does sound like air sucking. You mentioned it could be the secondarys, is there something i would need to adjust/clean to stop it from happening? I have a stock intake w/adapter for carb.
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[72chevyk10]

does the engine otherwise run good? (besides the noise) like no stumbles, bogs.. etc.? i personaly like the noise so ive never tried to stop it i dont know if there is a way to or not.. mine isnt a "screaming air" sound its more of a "compressed air" type sound


and does it quiet down at wide open?

[72chevyk10]

if it is the choke.. i didnt even know there was vacuum to it so it may be that too