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| | | | Joined: May 2009 Posts: 107 Shop Shark | | Shop Shark Joined: May 2009 Posts: 107 | I have two carter w-1 574S carbs ( 839987 ) that I want to put on my tattersfield dual intake.
Would anyone who has this setup mind telling me what modifications/issues they had with getting them working?
235 is stock.
Standard rear end, drive line, 4spd transmission.
Last edited by 52Stove; 12/31/2013 7:26 PM.
Take care,
Steven
No one can drive us crazy unless we give them the keys.
| | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | | | | | | Joined: May 2009 Posts: 107 Shop Shark | | Shop Shark Joined: May 2009 Posts: 107 | Thanks Tim. But what I am looking for is information on how to setup the W-1. What jet size, needle and seat are needed? What are these long needles I keep seeing on ebay and what ones do i need for 574s (Chevrolet 839987? etc.....
Thanks for the help in advance
Take care,
Steven
No one can drive us crazy unless we give them the keys.
| | | | | Joined: Nov 2002 Posts: 2,772 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,772 | Here is a link which has much information about the W-1 carburetors: http://www.thecarburetorshop.com/CarterChevroletW1.htmHere is a link that has information about adjustmenets: http://www.thecarburetorshop.com/Dual1barrelcarbs.htmThe "long needles" are the metering rods. The best approach is to build the W-1's to absolute stock condition; and then adjust from there. Depending on what has been done to the engine (compression, cam, headers, etc.) very little may be needed to modify the carburetors. Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | | | | Joined: May 2009 Posts: 107 Shop Shark | | Shop Shark Joined: May 2009 Posts: 107 | Thanks carbking! Every thing is stock on the inside of the motor.
Can these be adjusted to handle a modified 261 ( step up cam, polished ports w 383 head ). I have purchased a few carter 966s in case the 574's will not work.....
Take care,
Steven
No one can drive us crazy unless we give them the keys.
| | | | | Joined: Nov 2002 Posts: 2,772 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,772 | They should do fine on a 261 unless it is a dedicated race engine; in which case they may be a tad small. But if you are not at continuous WOT they should be fine. You will probably have to do a little tuning for the 261.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | | | | Joined: May 2009 Posts: 107 Shop Shark | | Shop Shark Joined: May 2009 Posts: 107 |
Take care,
Steven
No one can drive us crazy unless we give them the keys.
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