http://www.gzmotorsports.com/vacuum-pump-guide.html#chart
Now I know that the lower block needs more vacuum on a turbo app. But just how much vac do I need? What happens if I run to much vac (engine is sealed right now) ??
Should I get something like this :
Peterson's new adjustable vacuum regulator is on the leading edge of engine management. It has been proven to regulate crankcase vacuum and hold a steady level through extensive testing. Vacuum can be regulated from as high as 29.7 in/hg down to 2 in/hg. This regulator is machined from Billet aluminum and features the same great quality as all of Peterson's products.
08-0455 Vacuum Regulator w/-12AN Bung
Most gauges that automotive enth. use read vac on the intake manifold. But what about the lower block?? I'm having a very hard time finding this info, I might try a book store tomorrow. If not, I'll do what every gear head should, I'll call a top builder :) Esslinger has helped me in the past, I might try them first.