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Old 10-28-2013, 03:50 PM   #10
bigmac73
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Join Date: Mar 2012
Location: Chesapeake, Va
Posts: 1,275
Re: '69 GMC 305 V6 not running right

how many miles are on this engine?? Could it be that it is just wore out, cam starting to flatten or maybe valves are toast?? just throwing that out there
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Mike
72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider.
421 SBC / TH350 3000RPM Stall
Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks
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