i have LED headlights in my 1969 Camaro. I am running the Truck Lite versions. I had to cut off the little tab that sticks off the front of the head light so my RS doors would clear. Other than that, they fit very well with no actual modification to the car, assuming your headlamp doors are adjusted properly.
Review of the popular 7-inch headlamps available on the market today:
https://www.youtube.com/watch?v=XNZT6QqHHOo
Regards