Even with some boost you'll be fine. A little extra compression isn't going to hurt you at all. You'll actually make more power with less boost and the extras (throttle response-low end etc) still apply. If you were jumping up to 11-12:1 it would be more of a problem with today's gas. You're fine with that head/gasket combo. The one thing I did just think about though is PTV clearance. I've never ran/checked a TFS1 with milled heads. I still don't think it's a problem but obviously you'll have to check.