Carb. restrictors

mightymopar · Apr 26, 2016

I apologize up front for my ignorance after a lifetime of muscle cars, (68 years old), but how does one install restrictor in a carb? It's an Eddelbrock 1405 manual choke if that matters. Thanks, Dave

Lionized · Apr 26, 2016

A restrictor is a plate that mounts between the carb and manifold. They downsize the bore diameter.

I'm curious to know why you'd want to tune your carb then restrict it?

mightymopar · Apr 27, 2016

A friend of

Lionized said:
A restrictor is a plate that mounts between the carb and manifold. They downsize the bore diameter.

I'm curious to know why you'd want to tune your carb then restrict it?

Can't figure out what combination of metering jets, springs and rods to use is the reason. Just thought it might to be easier to use restrictors. I really don't know carbs and a friend of mine thought the restrictors also might an easier way to lean up the carb. It really is running way too rich. It IS a 600 cfm on a warmed up 318.

Lionized · Apr 27, 2016

mightymopar said:
A friend of

Can't figure out what combination of metering jets, springs and rods to use is the reason. Just thought it might to be easier to use restrictors. I really don't know carbs and a friend of mine thought the restrictors also might an easier way to lean up the carb. It really is running way too rich. It IS a 600 cfm on a warmed up 318.

I really wish I could help out more. I've got the exact same carb and, after a couple of weekends, finally have the car running where I like it.

You shouldn't even need to touch the jets/rods on a 318. Mixture adjustment and possibly the secondary pump linkage move I mentioned in the other thread.
I honestly feel that messing with restrictor plates will only add to your frustration...and not solve the issue at hand.

coloradodave · Apr 27, 2016

Dave, you're going in the wrong direction and your "friend" isn't helping. Restrictor plates ARE NOT used to lean out carburetors.
If you are not willing to download the Edelbrock manual, as I suggested a while ago, I would take the carburetor or the car to a shop that can diagnose the problem and get it fixed. Local car clubs or auto parts stores are good sources to find an honest, capable mechanic. However, carburetors are not mystical devices. Edelbrock not only provides manuals, but also videos online that almost anyone can follow to get their carburetor squared away.

mightymopar · Apr 27, 2016

Thanks man, I did download the manual and am studying it, pretty sure I will be able to fix my own problem soon. Thanks for the help.

coloradodave · Apr 28, 2016

If you get stuck PM me. I've worked with these carburetors for a long time. And yes, I'm older than you....lol

Carb. restrictors

mightymopar

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Lionized

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mightymopar

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Lionized

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coloradodave

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mightymopar

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coloradodave

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