Ported and Polished heads????

I'm looking to get as much HP (hopefully around 320 rwhp) out of my motor without a power adder. So my thoughts were getting a nice set of heads to match up with my modifications. At this time I'm pulling 294 rwhp/312 rwtq on the dyno with the below modifications and VT stage II cams with an SCT tune.

Thanks for the help in advance and yes I did perform a search but I was wondering if any new products have hit the streets...I've been off line for a while and trying to re-establish myself to get my car ready for the summer...

So far the VT heads seem to be at the top of my list since I already have there cams but I'm unsure of which stage would best fit my combo. I notice on there website that they have three different options (Stage 1,2, & 3).. I know stage 3 would probaly be over kill. Haven't looked into the ModularPowerhouse but I'll give them a call.

Thanks,