Been running Amsoil Zrod 10W30 the past couple of years.  No smoke and everything seems good.  
Oil pressure is about 50-55 once it's warmed up and driving.  40-45 ish at idle (if I recall).

Would I benefit from higher pressure if I went up to 10W40 or is the thinner oil I'm using able to flow into places better, i.e. for better top end oiling?
With that Amsoil I have to plan ahead and order it.  
Thanks.