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Help! 4.3 misfire problem

chevyvirgin19chevyvirgin19 Posts: 1
edited August 2015 in Chevrolet
help me out guys!  I bought an 03 S10 with a 4.3 vortec off a guy I know. It has a miss that I can't get rid of. 113,000 miles. It never really got driven for about a year. I've driven it before about 1 1/2 years ago and it ran perfect. The guy I bought it from had somebody replace the injectors and the crank position sensor. I myself have replaced the plugs, plug wires, distributor cap, rotor button, coil and air filter. Still no luck. The first thing I replaced was the plugs. #6 was fouled pretty bad and a couple others were wet with gas. It's a little sluggish to start when it's warm and check engine code says #6 misfire.  I took it down the interstate today and it seemed like it had trouble keeping speed. Idles rough but seems to be alright at higher RPM's. Anybody have any ideas on what it could be or what else I should try replacing??  Thanks for any input! 
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