1992 Chevy Silverado Lack of power

1992 CHEVROLET SILVERADO
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TNT1417
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Engine Performance problem
1992 Chevy Silverado V8 Two Wheel Drive Manual ? miles

I have a 350 V8 92 silverado step-side. Im having a lack of power problem. when to the floor it seems to be working about right for about half and second to a second and the you can feel a 25 to 50% percent drop in power. I have changed all sparkplugs (ACdelco). New fuel filter and new EGR valve. I ran Sea Foam in the gas tank to clean injectors out as well. Can someone please help me
Aug 19, 2009 at 2:19 PM
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