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I'm setting up a 235 with a 2x1 Offy intake and 2 Rochester B carbs. The fuel pump has 1 outlet and there are 2 carbs. How do I get 2 lines into the carbs?
Additional questions:
What size fuel line is needed? (tank to pump, pump to carbs)?
Is a stock 1960 235 fuel pump sufficient for a 2x1 setup?
'59 Chevy BelAir (v8)
'50 Chevy Fleetline DeLuxe ('55 235)
'48 Chevy Fleetmaster coupe (late 261)
Chicago
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Joined: Jul 2000
Posts: 4,618 Likes: 24
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Check with Jegs Or summit for a Fuel block. Moroso Has one a Y block You may even find one at any Speed/high performance shop.
Larry/Twisted6 [oooooo]  Adding CFM adds boost  God doesn't like ugly.
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Stock pump is fine...
Stock line sizes are fine...
Like Larry suggests, you split the line out of the fuel pump with a fuel block or log as they are sometimes called. A cheap and easy way would be to just use a brass "T" fitting from the hardware/parts store. Plenty of fancy finned aluminum choices out there also.
Usually I use 3/8" tube from the tank to the pump, and 5/16" tube at the carbs. You could use either 3/8 or 5/16 between the pump and the splitter. This setup doesn't have as much fuel demand as you might think, so overall volume isn't really something I'd worry about.
I've seen brake lines used, copper tubing with compression fittings, fuel grade hose with barbed fittings... They all will work if installed properly using some "common sense".
If you use hard line all the way up to the fuel pump, make sure it isn't "tied down" too close to the pump, or you may have a problem with motor torque and frame flex.
It's not recommened to use one of those cheap glass inline fuel filters in case of breakage. Replace the glass with a piece of tubing or O'brien Truckers makes a nice finned aluminum insert. Other filters are also available elsewhere...
Make sure your carbs are identical, and that you don't plug up the vac hole at the bottom of the carbs.
I.I. #3174
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Joined: Oct 2001
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thanks for the advice!
Duh, i don't know why I didn't think of a log.
'59 Chevy BelAir (v8)
'50 Chevy Fleetline DeLuxe ('55 235)
'48 Chevy Fleetmaster coupe (late 261)
Chicago
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Joined: Apr 2002
Posts: 306
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Hellfish, Go over to RIDES section and look through the many photos of inline motors with multi carbs. Us Inliners do good work, check it out.
Jim, I.I. #173
(It's easier to get forgiveness than permission!)
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This is what I did:  Frank
To old to die young.
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that's real CLEAN Frank.
Thanks for all the advice!
'59 Chevy BelAir (v8)
'50 Chevy Fleetline DeLuxe ('55 235)
'48 Chevy Fleetmaster coupe (late 261)
Chicago
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