It certainly cant hurt to port match it to your heads. I dont remember from other threads what you have, but my Dart 230's were alot larger than my ports on my Victor Jr. intake. Plus being the EFI version I had big injector bosses sticking down. I decide it would be worth the few hours to port match and grind down the injector bosses. Like I say it cant hurt.
I found that a 1/2 inch drill and a HSS cutter worked very well on the aluminum. The slower speed seems to keep the cutter cleaner than trying to use a die grinder.