There's nothing wrong with running synthetics. Just use high quality stuff - AMSOIL, Redline, etc. Search synthetic oils and you'll find all sorts of good info, ie. ash and carbon build up info.

 

On the masterpower setup almost 500rwhp at 20psi. Was fast as **** but didn't like the log style manifolds boost pattern of either off or full blown on. So now I'm going with a fully divided manifold, borgewarner s472 and a 1.10 backside. Should be making the same power @ 17psi.