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View Full Version : Another Weird (?) titled question - ID of fuel filter



Kivyee
03-03-2026, 01:56 PM
Hello Forum!
This is the set-up the PO had on a carbed 302 - its a fuel filter with a return line, right before the carb.

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I'm trying to replace this filter - it has low km (9k km) but about 8 years on it. The car runs fine but there was some gas leak in that area when I ran the car a few days ago. All connections are tight, except a missing clamp on the inlet side, but I'm wondering if it might be the filter getting clogged since it's run before without any leak issues.

Now comes the weird part. There's a return line on the filter, but it's not set-up as the typical vapor-lock-prevention return filter with a horizontal orientation and the return port on the same side as the outlet port (e.g. WIX 33040)
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It seems like more of a Dodge style filter/vapor separator ala
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PO wasn't much help - he can't recall any part numbers etc. So I'm hoping this will look familiar to someone.

I'm just hoping to replace this part for now since if it aint broke, I dont wanna fix it. And plan for the fuel system when I decide whether or not to keep the carb.

Thanks in advance!

Dgc333
03-04-2026, 07:36 AM
The actual photos you provided appear to have quick connect flanges on the fittings of the filter. This suggests it is an early 2000s Corvette combo filter regulator. This filter regulates the pressure to 58 psi. If that is what it is I would think it would never be returning fuel to the tank if the pump is providing the typical 6-7 psi that a carb operates at.

FWIW. I use one of those filters in place of a separate regulator on my EFI Hemi powered 33.

Kivyee
03-05-2026, 10:46 AM
Hey Dgc, as far as I know it shouldn't be a regulator at efi pressure but I'll do more of a search around a filter/regulator for carb applications. Thanks!

Kivyee
03-06-2026, 12:30 PM
Through more research I found that the filter is very similar to the Napa Gold 23424. Same configuration and outlet sizes. Used in Ford and Mazda applications (e.g. older expedition). I'll likely switch to a carb specific return style pressure regulator next with a fuel pressure gauge when I refresh the fuel system. On to the next project!

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