[rdorman]

I forgot to mention that lifting the rear of the hood or louvers at the rear will only help so much. The base of the windshield is an area of very high pressure as well. Granted with no changes the pressure in the engine compartment will be greater than that at the base of the windshield so it will help. Keeping the air out is a better solution. Just an opinion! Haven't done a single one of these things on my Cobra and probably never will. Now if I was building a strickly racer............... Also, the front appears to be a bigger offender than the rear, start there. I have considered building a scale windtunnel and playing with the car. Now all I need is spare time!!
Rick