I bought a 1964 GTO last spring. Original 4-bbl 3-speed car that was swapped for a 400 4-speed. Added limited slip and a pretty low gear rear end. Car runs great! I had the suspension rebuilt and added a 3 core aluminum radiator. Additionally I added a fan cowl. During my recent road test I noticed really load wind noise from the front of the car north of 65 mph. Since this is my first GTO, I have no baseline. Do these cars typically have a lot of wind noise? Any chance the fan cowl could be the cause of this?