And 58cc combustion chamber OOB. Whether that's an advantage or not depends on pistons.
If you're looking at new heads and you've already got the Magnum valvetrain figured out, you might try the EQ Iron Ram heads from hughes. I'm very happy with mine, and they'll save a couple of bucks over the edelbrocks (but not pounds, they are heavy suckers). Supposedly flow better than the Eddies too.
I'm not sure why you'd flee the shaft rocker system for pedestal mount either. The Magnum stuff supposedly flows better than most of the LA heads, though.