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05-03-2012, 01:50 PM
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Vintage 4x4s
Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
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Quadrajet upgrade
Looking to get my original carb for my K20 rebuilt by SMI or purchase one of thiers. They said theirs have a booster design for better mpg? Anyone experience this and know how much more efficient these (newer i assume) carbs are? Would like to keep my truck more original since its numbers matching but if I would pickup 1-2 mpg I would store my original carb and run a different Q jet. Difference in price is about 125 cheaper to rebuild my original carb. Also, will the newer one use the same linkage and choke control including the little thermal coil on top of the manifold?
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67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore  )86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6 |
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