Bits missing of early gen 2 valve cover

Hi, just chasing some parts that I think are supposed to be there.  I painted up an early model 89-92 valve cover and put it on my 1993 model and found some differences.  On the 93 there is a single part that sits in the middle that part of the intake bolts to (looks like figure 8 shape), on the early model cover I have there are two separate holes instead.  I'm assuming there a two individual parts that sit in this to guide the bolts.  Chasing these (if they even exist).
 
Thanks,
Pete