I have just finished installing my new plugs and wires. The new plugs are denso iridium IK20's and I got the wires from sparkcoonline.com. After I finished I took the car for a test spin to make sure everything was okay. First gear was fine, then I shifted into second. at about 4k the engine bogged down and started shuttering and continued to do so until I let off the gas at about 6k. I turned around and drove back home. I made sure the wires were connected correctly and that all the plugs were properly installed. Then I took it around the block again. It did it again!:wtf: I drove back home again and removed the wires and reinstalled the old ones. Took it out once again and it had stopped. Does anyone have any clue why this happened? Did I get a bad set of wires or am I doing something wrong? Please help this is really pissing me off!