Vic Edelbrock is running one of these on his Smokey Yunik 67 Camaro vintage racer.
That car has a stock flat hood with the cowl plenum setup, not the cowl induction hood.
So it should fit under a cowl hood. I'd sure look at the repro crossram aircleaners that seal to the hood and are the oval shape.
There is an early and late version and the late is better breathing with taller filter element.
"Camaro Untold Secrets" By Wayne Guinn is an exelent book with photos of the origonal crossram setup.
Here is the web page. http://www.camaro-untoldsecrets.com/welcome_fs.htm
I think this manifold had linkage that was designed to work with a throttle arm like the stock Camaro.
The factory crossram used the cable throttle off the 6 cyl Camaros.
The factory crossram had a steel shield at the rear of one carb to prevent fuel from hitting the distributor.
I think this would be a good idea for you to duplicate on your car for safety.
One of the big problems is uneven fuel delivery from cyl to cyl. They are best set up on the engine dyno.
The GM manifold has fuel dams incorporated in the casting to direct wet fuel flow to the lean cylinders.
I'd build as big an engine as possible to help "tame" this manifold, a 383 or 400. I think would run better on the street.
I've been considering converting the one I have for fuel injection and making it look similar to a factory setup.
This would "cure" the distribution problem.
But most of the injectors would have to be put inside the manifold to fit.
Check my web page for First Gen Camaro suspension info:
David's Motorsports page
First Gen Suspension Page
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer
[This message has been edited by davidpozzi (edited 01-16-2001).]