I have a 2000 4.3 v-6 silverado i have recently changed plugs,wires,cap,rotor,fuel pump, fp relay,fuel filter .now truck is missing at about 2200 rpms thru 2800 but if i step on it it runs great. any tips on what it could be?????

 

I would start with checking wires for a bad spot, then maybe the timing advance? I'm not sure, but that is where I would start.

 

Did you check the gap on the plugs before installing them?

 

make sure its wired right...those numbers on the cap are hard to see