Those are kind of neat looking. I am building a small block right now with the late model heads and I think I am going to try and find a set.

Apparently they are Composite, not Aluminum. And pricey :)

A MARINE fuel system. That plastic fuel filter is a time bomb waiting to go off.

While the eng itself is basically a car eng, almost everything else attached to it is specially designed for a boat.
This includes fuel delivery system, carb, alternator, starter, exhaust and cooling system.

Fuel delivery sys should include a metal filter/water separator and fuel hoses rated for use in the eng compartment of a boat. Mechanical fuel pump, if equipped, should have a separate hose connecting fuel pump to carb in case the diaphragm ruptures.
Carb should be marine style and have a J-tube for float bowl vent (and the throttle shaft bushings are tighter on marine version).
Alternator and starter for marine applications are specially designed to not arc and cause an explosion if fuel vapors are present.
If that's an automotive water pump, it won't last very long in a boat pumping pure water.

Remove the air filter and take a pic of the carb..

You can post pics after 10 posts. Just make a series of posts saying post 6, post 7, etc.

...

It has a electric fuel pump

The plastic fuel filter is the only issue, not the rubber fuel lines, as long as they are rated for fuel.

I removed it as I forgot the carb has an internal filter

Everything stated is correct except, Quadrajets did not have J-tubes.

All the marine ones I've seen had a single J-tube.

Here's a bunch of different Q-jet models that all have them.
https://www.marinecarburetors.com/collections/quadrajet

Maybe were talking abt something different??
Here's what I call a J-tube:

https://cimg3.ibsrv.net/gimg/www.off...1b8efc7320.jpg

I had to dig into this last year when I was ordering replacement fuel lines.
There are different ratings depending on where in the boat they are installed.
Type A1 is the type you're supposed to be using in the eng compartment. There's a lot of professional boat mechanics that don't know this and a lot more shade tree mechs that don't.

https://www.offshoreonly.com/forums/...-fittings.html

I know there are tons of boats out there running around with automotive fuel lines and they haven't burst into flame yet, but if you want it done by the book, you'll need some A1 rated fuel hose in the bilge.

BTW, If the insurance company investigator knows his $hit, he'll be looking for that when he arrives to examine your burnt boat claim. The liability isn't something I personally want to risk but to each his own. :drink:

I've seen replacement carbs like the one you pictured. The motors in my '92 are original and have never been opened up. I rebuilt the 2 quads about 3 years ago and they did not have J tubes, and I wondered why. I went back and looked at couple older Service Manuals and neither one shows the J tubes. I agree they should have something. Only possibility is the vent tube is cut at an angle to flow into the primary side if it did stick open.