318 Torque Build

if it's torque you're after i'm surprised nobody suggested a 4" stroker kit to give you 390 cu in's. you said you may get a 3.58 stroker crank, by the time you source the other parts needed it'd be easier to get a complete kit and bigger's better of course. you wouldn't need a full forged kit by the sounds of it so the kit's aren't expensive either.
neil.