Holly carb running rich

There was no easy adj. for this one. The guy I had fix it has been racing small block mopars for 30 years. He knows carbs it wasn't a turn of a screw or a simple float adj. he had to drill a small hole in the throttle blades. Some holleys come that way. I didn't put this on here to get bashed about how little I know about carbs, I was just trying to help someone that may be going thru this same thing. Thats why I took it to a pro, He runs a W8 motor he put together a couple years ago and has been in the low 8's. He is the best carb man I know and there is several members on this sight that have had there cars to him for final tunning.