Engine compression read out

Hey guys i just did a compression check on my 318 today, did it while it was cold. main reason i did it was because the motor would make a slight noise through the exhaust, people kept asking if it was cammed, but from my knowledge it is bone stock. but here is what i got on compression....

tranny
135 143
34 142
160 142
130 145
fan
... whats your guys thoughts on this.
thanks
adam