Anyone else feel suction when putting hand over oil cap hole with engine on

[truwarrior]

If my engine is running and put my hand over the oil cap hole I feel an slight but very notiable suction. Is this normal? My car is lacking power and I don't know why. Here is my timing.

http://home.comcast.net/~gvozdjakj/PDC_0091.JPG

 

[Defiant]

If your PCV Valve is working, it is.

 

[1GFresnoTalon]

I tried it on my, but its normal. Do you have a little filter breather on your head?

 

[truwarrior]

I tried it on my, but its normal. Do you have a little filter breather on your head?

Ya.