motor swap help

I have another post about my motor and that it is not as fast as before well I put a different turbo and I know its not the turbo thats the problem its the motor but I was wondering if you ain't getting the right spark can that be a big difference I had old wires so I changed them it made a little difference but I still am loosing power and my car like while idling will like skip a little I am thinking a misfire so spark somwhere my friend said get a new coil pack and change my plugs the plugs were brand new but I think the wires messed them up can anyone help me. paid 3000 dollars and my car is a sled.

thanks, Nick