Bad lifters?

I have been getting KR on my grand prix for a while now not to much but its still there. The mods I have on the motor is a 3.5" pulley, 2.5" catted downpipe, K&N air intake, 180* stat, Overkill pcm and I had switched the plugs to a TR8 super cold plugs to try getting rid of the KR but still has some on the highway. I was wondering since there is a little bit of noise coming from the lifters I think but could that cause KR? I have noticed that when on the highway at cruising speed the bogging down will kick in then when starting up a hill the rpms will bounce then climb with the accleration and that when I see KR. I also think there might be a vacuum or intake leak but not sure. Any help would be great because no one in my area does scanning or tuning. Thanks!

gps stock has kr..your always gona have kr with a overkil pcm ur best bet is to get a tune from sum1

Or get rid of the 3.5...

X2 ^^ i think u should just put stock pulley back on until u get enough supporting mods. have u read the safely modding your 3800 thread?

If u havent u need to read that

technically he should be good as is with a good tune, but telling that to everyone will have people pulley happy.