I am interested in comments as to value for the Indy aluminum timing chain cover for RB blocks. Is it any good or not? I'm interested in sealing up motor for vacuum pump use and for the moment have a 'fail' for stamped steel sheetmetal versions of the timing chain cover. OH,.. any comments as to surprises with fit-up are appreciated as well. This is along the lines of: Won't work with ATI Dampers or Crank Triggers or Timing Pointers, tight with cam buttons, etc. Thanks in Advance.