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Re: 87 running lean?
sounds like cheap gas and/or the timings off. try bumping up the timing a bit... and like dan76 said check the plugs and see how they read.
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"Dennis the Menace"
1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E
MY LS SWAP/FRAME OFF BUILD BOOK
2006 TBSS way too much to list 
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