Years ago when I used to go to the dragstrip a lot more there was a guy here who had a purple 70 Challenger with a fiberglass hood and I would watch that car cross the finish line at 130 or so and the middle part of his hood was bowed up really far from all the air being built up in front of the grill with no place to go.

Another guy from Utah used to come here a couple times a year with a green 70 Challenger and that car ran 9 something . He put a clear plastic cover in front of the grill to keep the air out. You could do something like that and just put a few holes in it for some airflow maybe???