Take your time
I upgraded to the 6.1 springs and rods, rock solid for 2 years.
Choice is yours to use compressed air method or cotton rope. I used cotton rope. used a dowel to find upstroke marked top and bottom on the dowel. 3/4 of the way up drop some string in the through the spark plug finish easing it to the top. I recommend an extension magnet to hold the spring clips and put some rags to cover the oil returns (rags a tip from other users). Just take your time. If you do the driver's side take the hint and remove the brake booster, makes a world of difference. This thread is full of some great advice!!