( Click pictures to enlarge )

Here you can read about the Offenhauser Cross-Ram I have installed.
http://www.camaros.org/crossram.shtml
http://www.camaro-untoldsecrets.com/articles/crossram.htm

The stock Cross-Fire manifold uses the same basic design but the ports are much smaller and it has EGR.
This is a Cross-Fire manifold on top of an Offenhauser Cross-Ram manifold:

And here is the Cross-Fire lid on top of the Offenhauser manifold:

I had to do some minor grinding to clear the oil pressure sender.

The stock wiper motor did not clear the larger Cross-Ram manifold. I found a smaller wiper motor on a 1985 Chevy Blazer.

By cutting the mounting feet off the wiper motor I could insert it a bit further. I then welded the feet back in the new position.

I wanted to be able to use the stock air-cleaner. To get the throttle plates further apart to match the Offenhauser I decided to rotate the front TBI. To do that I had to modify it to clear the air-claener base and also modify it so I could insert the throttle shaft from the other side.

I made a custom lid and installed my modified swirl-plates.

I re-used all cable brackets and got the fuel system back together.

To clear the distributor I had to remove a clamp on the air-cleaner base for the vacuum hose.

The stock air-cleaner is in place. You could probably fool almost anyone that it is a 'stock' cross-fire with that air-cleaner in place. And YES!!! It is does clear the hood.