are there detailed instructions for any of this....

thinking of doing the gas tank and intake.

GasTank: can I just pour it in the gas tank? Anything else I need to know?

PCV Hose: while car is on, disconnect PCV hose and "stick it in the can....sucks it right up. kills the motor, let sit for like 15 minutes...then start the car and watch it smoke like a bitch". Does this sound right?

I will be replacing spark plugs afterwards