Hughes Iron Ram Heads
They have decent flow numbers for stock type castings. Just to see what Desktop Dyno thought about them I compared them against my home ported X heads which flow higher peak numbers but the lower lift numbers aren't quite as good. Desktop Dyno showed a gain of 15 hp and no loss of low end torque. Plus their closed chambered so you can run somewhat higher comp. and 1.6 ratio rockers make the cam in essence a little bigger. For the price they look like a real good deal.
Hopefully someone will chime in that's running some. Nothing like real world results.