I gave up on  ERP gauges. Some thing totally went wrong during installation. During test flight 727-100 was unstable. ERP thrust was unlimited 4000ft climb all the way 30000ft. Landing 120KT indicated AS, but it must be over 200Kt in short final. It was hard to control plane on the rwy. Trim the airplane was impossible.

So I am going to uninstall and reinstall 727-100X. May be when I am ready  in future days I will try it again.
Thanks for your help.
Regards
Sanal