I have a family member's 72 I'm trying to get together. We decided on and got one of those 2" steel cowl hoods. I noticed it don't have the rear cut out where the grill "fresh air intake" is on the stock hood. I can't even install my windshield squirters because it's all sealed up where normally they poke through the grating. I'm assuming most people cut this rectangle piece out, but did you go all the way to match the size of the stock grating or did you keep it within the width of the cowl above it?