I had 3.55's no better cam and it rocked compared to street heat. I can not guarantee your results but here is my result:
#1 Butt dyno
#2 rwhp #'s former kauffmans (now sgs) I went from 271rwhp to 290+ PEAK IIRC (with Cats).
#3 dyno and powerband and RPM pull proof with nearly no low end loss and nice gain all across.
#4 Powerband increased from a dead no power at 5000rpm to pulling to 6500rpm.
I strongly believe that those "P's" can get you nice rwhp. We had a debate long ago. If you already have P's, you can port them but you did say my "current" combo. One guy that posted for example got 312rwhp with your heads (ported) but you would definitely need a track heat for that. Overall powerband, that intake should treat you nicely. Both are fine intakes tho in my. Just different. If you did not gain peak (and I think you would) - you could also gain a wider rpm band which will make the car faster.