ok guys I have 2 questions so i figured i'd post them together. first of all Im gonna post a pic of my engine and i need to know if i have a s4 or s5 manifold. I hope its not too retarted but i cant tell from the pics online. If i have an s4 would swapping to an s5 be difficult? Also would it be a good idea to block off my omp and premix from now on. At the moment it is leaking and needs to be resealed so i figure if im gonna change it i might as well do it now.

 

That's an s4 manifold, last time you asked this I posted links to pictures did you not click on them?

Search for MOP removal/blockoff/premix this has been talked about more times than is necessary.

 

Your MOP isn't even hooked up, definitely start premixing at the least.
It should have a metal rod hooked up coming from the MOP and going to here:

 

Man, and I thought my engine bay needed some work.. those calcium deposits are horrible.
meh, as long as it runs right?

 

Looks like it might not be running much longer in the current condition it's in, he really needs to take everything apart and replace the vacuum lines, pulsation damper, fuel lines, coolant lines, etc.

 

because they are dirty?

 

Because the stuff is old as hell