Looking for some answers here everyone. I just replaced my plug wires with Magnacores, because I was getting what I thought was a slight miss on one of the cylinders and causing my 2000 SVT to idle a little strange, and when on the freeway with the A/C on, or defrost, it jerks/surges slightly. But, after doing the change, it still remains, so do we think its time for a plug change? Or could it be something else? Looking for any insight, thanks.
