I agree with Sleeper-inc. Should Have been broke in easy. It should not build boost or very little . This tell me the cam timing or ignition timing was wrong. I would go with stock cam, Ranger roller cam or Bopart cam. Here is how to check timing.
http://www.stinger-performance.com/tech.html
Camshaft breaking from Esslinger. No mention of red lining it. These people are the Gods of 2.3 for circle track and etc.
http://www.esslingeracing.com/tech/camshaft_breakin.pdf
Ask if valve lash was set? Here is procedure.
http://www.esslingeracing.com/tech/H...SETUP-TOOL.pdf
Good luck. Maurice