Now at this time I did not understand the benefits of aerodynamic drag on a fuel motor. But then I don't think anyone else did either. I still had a gasoline or alky train of thought as far as eliminating drag to go faster. I figured that filling the void behind the car with the exhaust would help eliminate drag. Also the setup was shaped like a jet pump to draw air out from under the body to increase downforce.
Nothing is ever simple.
As I had started working on my billet heads which started out to be 4 valve, the headers had a port flange adapter to mate to the iron heads that I was still using. On the first run at a match race in Seattle the car seemed to rotate the earth till the coupler shattered. This was after my crew had to put out the fire on the chute lines from the exhaust on the burnout. I also learned during this time that the port adapters were melting. I realized that if they wouldn't work then the divider between the exhaust valve on a 4 valve couldn't be cooled enough to last either.