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2nd Generation
wrong forum but oh well
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<blockquote data-quote="00 white lightn" data-source="post: 6856029" data-attributes="member: 40545"><p>i know i thought that too, because 3lb pulleys in the description say no tune needed, i mean its only 1psi more? my truck runs very very rich, i cant be leaned out that much. when i dyno'd it i was below 10.0 he couldnt even read it. i made 336, 408 stock is it possible to hit 380-400 rwhp with a 4psi pulley headers, cold air, boost bypass, catless midpipes. also does an x pipe do much for exaust sound quality or horse power</p></blockquote><p></p>
[QUOTE="00 white lightn, post: 6856029, member: 40545"] i know i thought that too, because 3lb pulleys in the description say no tune needed, i mean its only 1psi more? my truck runs very very rich, i cant be leaned out that much. when i dyno'd it i was below 10.0 he couldnt even read it. i made 336, 408 stock is it possible to hit 380-400 rwhp with a 4psi pulley headers, cold air, boost bypass, catless midpipes. also does an x pipe do much for exaust sound quality or horse power [/QUOTE]
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