i got a 91 Z with TPI and i made a air box out of fiberglass. large enough so i could put a cone filter that goes right on the TB which the box fits around. the air box has a scoop that sits directly behind the scoop on the hood that catches air and forces it into the filter.
doesnt look real nice yet because i wanted to get it on there and try it out. it works really great. my car has great top end now. it used to dog out at about 90 and now it pegs the speedo like nothing. of course i have a crappy 110mph speedo but it still pegs it very easly. so for all the people that have these hoods and aint got them hooked up DO IT. its very well worth it.

Alan

 

I think the foglight Ram-Air would be more benaficial than the hood. because after about 90 the air just goes right over the ram air scoop. my friends mustang ram-air cervini hood helped him from 40-70
The fog lights openings force the air in at all high speeds.

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91 Z28 5.7l Camaro
T-56,McLeod Street Clutch, Cross Drilled Brakes, KYB's,AFPR, 3.73 Gears, Borla Adjustable Cat Back, Hypertech Chip, Hooker Headers.
more to come....
My 91 Z28

 

i cant say much about the fog light openings because i'v never rode in a car with that setup. what i can say is that this isnt a mustang which is shaped like box. my car does catch air at high speeds. before it got very dogish at about 90 and now with the ram air on its a differant story. when the track opens again im going to make some runs. im gonna do it with the ram air and then with the orginal setup. i will post the differances. o and it must be a pretty good setup since thats what the new S.S. camaros use.
Alan

 

He's got a great point, that is basically what the 4th gen SSes use, and they obviously don't dog out at any speed