Hi Dennis, Thank you for initiating contact. Without more details about the vehicle make, model, and year that this replacement hood is for, I cannot provide a definitive answer about where the best location would be to mount hood vents. The optimal placement of hood vents can vary depending on the vehicle's aerodynamics, engine cooling requirements, and other design factors. I suggest calling our parts specialists at 1-866-529-0412 to provide the vehicle information so we can assist you better. Have a nice day!