Ram Air
The fresh air for the interior comes from two 4" openings on either side the radiator, two 4" pipes pass the air to the firewall.
Fresh air vent between radiator and fender
I'm going to use the front vent openings for ram-air for the engine. I'm in the process of modifying a 1980 GM Van's air cleaner housing with 2 snorkels from 1976 Camaro 2 bbl V8 engines. The reason for the Van's housing is that it has a smaller diameter so it can clear the radiator hose off of the intake manifold. The hose goes straight up rather than to the side. The housing also holds a very tall air filter for good air flow.
Ram air cleaner with 2 snorkels needing some finish work
The 76 Camaro snorkels have nice big diameter ends on for connecting to fresh air hose. They flow quite well. I welded on the 2 snorkels - that's an experience! Very thin sheet metal, after about an inch, the metal would get too hot and burn through. Glad that's over. I put the snorkels at 120 deg angle but they could be closer together.
Cleaned up and painted white to match the engine.
On the engine
An alternative to making a dual snorkel air filter is to buy Ram Air Box which looks pretty damn hot. I used 3" aluminum furnance ducting for the hose and found a 4" to 3" spun aluminum furnace adapter. Hose clamps and it looks pretty damn good.
Spun aluminum adapter
Aluminum furnace ducting
Now that's an aggressive look!
New replacement protective screen at rad support
I was over at my mother's house and she was cleaning out the garage getting rid of some of her old gardening materials. Among the things she had was some screening. I thought that it would work to replace the old vent screening. Well, it happens to be an exact replacement for the original 54 year old screening! Can't get any more lucky than that.