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Old 01-20-2011, 09:52 PM   #1
bikernut
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Join Date: Jan 2008
Location: Soutwestern New Hampshire
Posts: 150
1987 pops and bangs

my 87 GMC K2500, 350 engine runs good for a bit and then it starts popping, banging and farting thru the carb. I have had it at the local GM dealer ship and spent $856 so far and it still runs like Sh!!t. replaced the dis cap set the timing, checked what few sensors there are on it, checked vacuum hoses and routing and now I am lost. anyone got any ideas?
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