Seafoam - pics please

Had a leaking valve cover gasket not too long ago - let it go a little longer than I should have and the engine is just nasty oily right now.

I replaced the valve cover about 3k ago and put some seafoam deep creep directly in the throttle body at the time.

A surprising amount of smoke came out and it seemed to run better so I think it needs a full treatment (except for the oil...not putting anything but oil in my crankcase...just not comfortable with it)

I tried really hard to get my brake booster line off but even after I managed to get the clamp off (which was hard for me, my hands are a little too big to work well back there near the fire wall) the friggin tube wont budge...it might as well be superglued on

What other line can I use? Somebody said the PCV line but to be honest I'm not sure which one they're talking about...nothing looks like right (I have 1 suspect if I was forced to guess but I'd rather hear from someone that's done it before)

Could somebody post a pic for me showing exactly which line I need to be using?

Much appreciated - thanks

Edit: Oops...guess I should say which year - it's a 2005 LS Aveo5