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Old 10-09-2007, 11:46 AM
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Help on building A tri powr set up for a SBC

I am currently building 3x2 setup on a 1985 350. i have 3 small base 2gc's and a intake. i have the choke that works off of heat from the exhaust. the one thing that i am unsure of is the secondary carbs. i know you are supposed to have different butterflies in the base but i am not sure. I was wondering of anything else has to be changed in the secondary carbs? blocking of the idle circuits and what not. any help would be appreciated.

Thanks,
Jeff

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Old 10-09-2007, 12:09 PM
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I contemplated the same setup for my sbc, I had a link that showed how to block the idle circuits but I'll be damned if I can find it. I planned on blocking the secondary carbs idle circuits and running a progressive linkage set up. Hunt around a bit and you will find the info needed.

Also make sure the throttle plates on the secondary carbs completely shut. Ive heard its a nightmare to tune if they dont.
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Old 10-09-2007, 12:30 PM
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Check out this link to another forum:

http://www.clubhotrod.com/forums/showthread.php?t=26886
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Old 10-09-2007, 12:48 PM
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Thats the link that went AOL
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Old 10-09-2007, 06:21 PM
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Thank you very very much. That was the most usefull information i have gotten since i decide to put the setup on my t bucket. thanks again

Jeff
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Old 10-10-2007, 11:45 AM
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Hope it will help you. I plan to do the same thing on a SBC in 37 Ford 2 door slantback
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