That link I posted doesn't have a valid path to the valve adjustment tip. It's really easy and clears the mind for a few minutes, you'll enjoy it one day.
Hers's what you need, 17mm crows foot socket, $20 for a set of metrics at a chain parts store; 14mm open end wrench; feeler gauge set; 10mm socket.
You can put your car in a high gear and roll it to move the cam lobes or get a 27mm socket for the front pulley, turn motor clockwise,. or a remote starter $15 at chain parts store. I prefer the remote starter because I have to raise the engine bay of the car up to waist level, hurts my back too much bending over. The 27mm with a pull handle is kinda difficult with the fan and all or getting under the car to pull it. If you use the remote starter don't pull the trigger, put the handle in one hand and bump the trigger into your other hand.
Make a template? with the valves and the clearances written on it, COLD is Exhaust .010 Intake .008, HOT .012 Exhaust Intake .010
Remove the valve cover and plug wires.
Put a towel over the fender and put your template under the wiper.
See which lobes high point, the smallest part of the tear drop shape, are coming towards you on the passenger's side. Our motors are sitting tilted to the passenger's side so be sure and line the tear drops top up with the center of the cam towers, there's 5 of them that the cam goes through, I made a center line with a Sharpie when I realized the motor wasn't centered in the bay.
When the point centers up top slide the correct feeler gauge in between the cam and the rocker's pad. If it's supposed to be .012 do what they call the "fits and doesn't fit" method, if a .013 won't fit it's good, if it does and the .012 is loosely go in and out it needs to be tightened. Take the 17mm crows foot and loosen the locking nut at the base of the rocker arm. Then use the 14mm to adjust the next nut up until the feeler gauge has a drag to it coming out. See if the .013 "fits or doesn't fit". When your happy with it tighten the 17mm locking nut and put an "X" on your template. Move on to the next lobe coming up, it doesn't have to be in order.
Before you know it you'll be done.