For a winter upgrade, decided to do dual walbro 450 pumps. I was initially going to use dual 340 pumps but wanted to use e85 rated pumps and I have had great luck with the walbro 450. First off, there is no way two of these will fit through the stock opening in the tank so I am going to modify an n/a tank I have laying around. For the sender, I bought a dynamic fuel pump module from ricks restomod tanks with an integrated fuel bucket, so there's no need for in-tank baffling.

More updates coming. I need to weld a late model GM fuel pump flange on to the n/a tank yet.

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I like.

Update:

The fuel tank parts showed up and I began mocking up the fuel pump flange onto the new tank. Its all tacked up. Now, I need to find a local tig welder..

New Spectra GM307A tank
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stainless fuel pump flange (same flange as late model gm vehicles. Can use use 5th gen camaro or cts-v pump modules)
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Big hole
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Wrapped the plate with 16 gauge steel to recess it 1-1/4"
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All tack welded up
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Added bungs for a fuel vent and also vented the fuel neck to help with filling.
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Very very cool setup and car. Nice

Awesome build. Anything you'd do different? About to start my swap into a 78 Cutlass

Fuel tank looks cool.

My brothers and myself all have a soft spot for G body cars. Good luck with it.

Where did you get the flange for the CTSV pump module?

Andrew

Thanks for the compliments guys.


The flange plate is from ricks tanks.

Where in wisconsin u located?

Near Madison

Just finished up the tank. I ended up resealing the tank's interior with por-15 tank sealer to prevent the welds from rusting from the inside out and sprayed the outside with semi gloss black. Also, the sender has seperate outlets for each pump so I wyed them together with stainless tubing and a fragola wye fitting.

The wiring in the car still needs to be done but I'll wait for it to warm up. The plan is to run a 10 gauge feed to each pump and also trigger the second pump via a hobbs switch at 7-12 psi.

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Looking good.

I just used some POR-15 to seal the inside of the quarter panels on my last little project. From what I read, the stuff works great at preventing rust.

I am in Oshkosh...

Andrew

Thanks and Im hoping so.

Thats not too far from here. I'll let you know when I'll be out and about this summer.

Looks Good!

Cool...Hopefully sooner than later because I am moving at some point this summer, but not sure when.

Andrew

Nice build, how far does your exhaust run under the car?

Im hoping so. The plan is to actually have the car driveable for the majority of the season. lol, we'll see how that goes.

The exhaust runs all the way out behind the tires. After the downpipe, near the trans crossmember, the exhaust bolts up to a bolt-in pypes dual 2.5 exhaust kit. The car is extremely quiet.

There is also a GN1 3.5" cutout installed.