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Carb Spacer Needed?

Old Mar 16, 2016 | 03:13 PM
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Default Carb Spacer Needed?

Seeking member thoughts on adding a spacer between the carb and manifold? I understand a composite spacer will help with air flow and heat reduction, but I'm also curious if it will help a rough start issue...

The car will start and run for a few seconds but dies unless I keep my foot heavy on the gas. Also smelling a very rich fuel mix, so I know the tune is off...my mechanic installed the manifold and carb and should've tuned it properly then, so I'm casting a wide net and looking at the carb spacer as well.

1976 L-48 with an Edelbrock 1406 carb on an Edelbrock 2701 manifold, currently no spacer. I understand hood clearance is an issue so if I went with one I imagine a 1/2" spacer would probably be optimal.

Thanks for any help!

Last edited by Crash79; Mar 16, 2016 at 03:15 PM.
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Old Mar 16, 2016 | 03:18 PM
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Right after you start the car does the choke pull off a little? This doesn't sound like something a spacer is going to fix.
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Old Mar 16, 2016 | 03:20 PM
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A spacer will not help your rich fuel problem.. you have float adjustment or needle/seat or choke issues ...

Last edited by fishslayer143; Mar 16, 2016 at 03:20 PM.
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Old Mar 16, 2016 | 03:23 PM
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Forget the spacer. Check for missing/loose vacuum hoses, loose carb mounting, etc., and as mentioned the choke adjustment. Hold the choke flap open and let it warm up fully. It should stay open by then

Is the choke coil getting switched 12V?

If its missing look for loose plug wires

Call the shop and complain!

Last edited by mikem350; Mar 16, 2016 at 03:25 PM.
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Old Mar 16, 2016 | 05:51 PM
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Don't touch that carb until you confirm your timing/ignition is setup/working properly.
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