I just put the center of the 3 piece spoiler on the hatch thats going to be on my car soon, i had to drill out the 2 center holes for the bolts because the spoiler is a different year than the hatch. but does it look like its supposed to?

 

...

 

looks fine to me

 

Same here, the real trick is getting it flush with the side pieces once you get the hatch centered.. Should be fine tho

 

Looks like an 82-86 camaro spoiler on an 87-90 camaro hatch...

 

good call, 83 spoiler, 90 hatch