edelbrock vers mopar alluminum heads

hey all you smart guys in FABO...

i'm finishing my 68 formula s and am building the "stock" 340 for it. do you guys have opinions on which heads are better/more hp - edelebrock's or the mopar alluminum ones? both have the same stats. i have two sets of x heads but want to save on weight. also, any predictions on hp/torque of my final motor with the alluminum heads, holley 750dp, air gap or "high rise" manifold, original 68 4 speed cam, roller rockers and of course underchassis headers.

thanks.
jim coster, pittsburgh, pa