'91 F-150 heads?

I ported my heads and they along with my ported lower intake and bolt ons did a decent job of making power. My old 5.0L LX was good for mid-13's on street tires afterwards I'd guess. If it was only a ported head swap on an otherwise stock car, without an intake manifold upgrade (much like yourse), I probably wouldn't go through the trouble.

You can run 12's with ported heads (as proven by several on here), but you've got to be creative with the additional parts and you'll certainly have to put your SN95 on a diet. If it were me, I'd just keep saving for the Trick Flow top end like you have been.