Just a quick one. Can't seem to find any answers on line so here goes. Will a vxr Astra turbo physically fit to a c20xe head. I'm just toying around with options on turboing my nova. Not sure on c20 or z20 or Saab. I'd like to keep the xe that's in there just seeing what turbos will fit. I'm already aware of the internal changes and compression ratios and that's not a problem. I'm just wanting to start rounding up the relevant parts I might need. Thanks for any help or info you can provide.