Super victor clean up

I had a gift certificate to edelbrock that was going to expire this month, so I cashed it in on a super victor intake. I've knocked off the rough casting spots with a file, but there's some spots around the carb flange that kind of rolls under I am questioning. Should I grind the spots flush with the carb flange, or does the material help with air flow? I plan on using a 1" open spacer.