CRAIG,
Here are some photos of the ram air system I made for my 1990 ZR-1.
I have had some trouble posting my photos, keeping my fingers crossed.
stock air filter with open air filter cover
Attachment 20147
open filter with scoop from the front bumper opening
Attachment 20148
5.5 in hole made into front of bumper
Attachment 20149
complete air system put together outside of car
ZR-1 Splash front plate cutout to feed outside air into the sealed air box.
Attachment 20150
Complete outside air system put together outside of car.
Attachment 20151