Would putting these on first cause issues?
 

I purchased the Alta power pack recently and want to install it (amongst the other slew of parts I have now). My question is would installing the colder plugs, new wires, and the coil pack hurt the car? I know you upgrade these when replacing the pulley to prevent pre-detonation but I won't be putting on the pulley at the same time. I will be putting the car into front end service mode over the next couple of weeks to do a sc oil service and full cooling maintenance but I wanted to go ahead and get some of the new parts installed. Can I do this? Thanks!

If that is your plan I would just do the wires and coil then change the plugs when you actually do the pulley