Installing a cam

[MidNiteBlu 5.0]

I just bought GT40 heads and 1.6 roller rockers and am pending on a cobra intake so i figure it would probably be good to do a cam too. I am leaning towards the TFS Stage 1 or the ford e303, probably more towards the tfs. Here are the specs for the TFS cam

Duration @ .050 in. - 221 intake/225 exhaust
(Degrees) Cam Lift - 312 in./.319 in.
(Intake/Exhaust) Valve Lift with
1.6 Rockers - .499 in./.510 in.
(Intake/Exhaust) Lobe
Separation
(Degrees) - 112
TFS-51402000 Good idle, strong midrange power. Aftermarket intake, heads, and headers recommended. Requires modified mass airflow. Compression ratio: 9:1 to 10.5:1.

221 intake/225 exhaust .312 in./.319 in. .499 in./.510 in. 112 Each


My dad and i have a pretty good knowledge and have alot of tools but neither of us have done a cam before. What should i look out for and what are some helpful hints? Also my engine has 106 miles on it will i need to replace the bearings, lifters or pushords?