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05-25-2011, 07:29 AM
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Registered User
Join Date: Aug 2009
Location: hillborough nc
Posts: 410
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chevy 250 with poor cold performance
hey guys ill be putting tags on my 79 this week and it still dosent run perfect. the truck has a 250 with pair smog injection, 3 on the tree, and 3.08's. the truck cranks up perfect every time but if it has been ideling for 3-5 mins the truck will not take off to save your life it will just choke off, but when it has been running for 15-20 mins it will take off reasonably good. ive tryed a bunch of stuff to get it fixed, ive replaced the weights and springs in the distributor, new cap and rotor, rebuilt the carb(rochchester verijet), installed a new heat riser, set the timming, bypassed all vaccume controled emissions devices, and attempted to adjust the carb. have eny of yall had this same problem?
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77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin 79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s 81 mercedes 300d 25 MPG 77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded" 73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091 '77 chevy trucks. built to stay tough. life is short build a hot rod 
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