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10-01-2002, 06:35 PM
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#1 |
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Livin' it up.
 
Join Date: Nov 2001
Location: Richland, MI
Posts: 2,212
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Tuning the carb
Hello all i just got back from school and the truck hasnt been run by my folks save a few months ago. Anyways the carb is outa tune and it was dieseling a li'l, i tuned that out but i know the carb is outa whack.
Can any of you guys give me a good regiment for a tuning procedure on this carb? It's an edelbrock 1407 (750 with manual choke) Thanks kindly i'd rather not waste any gas 
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-Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires. 
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10-01-2002, 07:20 PM
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#2 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Take a look in http://www.edelbrock.com/ under carbs for tuning info. Lots of info there,& jet & rod specs,& charts for ajusting the jetting. I have a 1407 on my 383,& the first thing I would suggest is to pull the top & check float levels......mine was off,& i have heard other guys say the same. The 1407 ran "fat " out of the box on my 383(flat top 383,with edelbrock rpm heads,intake & carb with a Comp cams XE 268). I knocked the primary jet down from a 113 to a 110, then changed the rod from a 7147, to a 7337. this leaned out the cruise a bit,but fattened up the power mode a bit. I have also changed the pump squirter from a 35 to a 33. Its all different for every app, & rather experimental(this I enjoy), but remember.....1 thing at a time,& I would reccomend reading all you can to get familiar with the carb. good luck........crazy longhorn
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