Aluminum cylinder heads

Hey Fabo, it's been a couple/ three years since I have been on here. Between having kids and buying a house, I haven't had the time or money to mess around with my Scamp. Im finally getting back to it and I've run into an issue with the stock X heads. While tuning in the fuel injection I had a bad backfire. The backfire blew out a hole in the #1 intake runner at the pushrod tube. I guess the machinist got a little overzealous when opening up the pushrod pinch. I've decided to upgrade to aluminum heads. I know this question has been asked before and I'm beating a dead horse but I'm looking for those that have been running speed master (edelbrock knock offs) for a while now. What's been your experience with them? I know MRL use to take the speed master heads and fix the minor imperfections to make them as good or even better than edelbrock heads. Too bad he's not building engines anymore. Thanks!