Ok im having what I think to be a bad intake gasket and high idle, hard starting when hot and a bad missing at 180-200 when the closed loop kicks in. I hooked up a vac gauge at the line where the egr came from being as I dont have one now and im getting around 18-20 at idle and 0 when I rev it! Does that sound right? I dont have a vac canister cuz I think mine is dead , cracked or something like that.

 

19-20"Hg vacuum at idle is normal with a stock cam. 0-2"Hg is normal when you have the throttle blades 100% open.... there is little if any vacuum at WOT. If you have a scanner, look at the MAP sensor. That is essentially the "opposite" of vacuum. The scanner will also show you barometric pressure (BAR), and BAR - MAP = vacuum.