which heads for a 408ci?

Ecellent ref. articles P/S C! I have them clipped out of the mag. You can go to moparmusclemagize.com and go to tech or engine builds. It's there someplace.

You can copy the address and paste it here to make a link.

Like this, click here; http://www.moparmusclemagazine.com/
Or to the article; http://www.moparmusclemagazine.com/techarticles/155_0310_340_engine_600_hp/index.html