don't use an eagle cast crank, go with a scat. balance it to 360 external if you need a lot of heavy metal for internal balancing
skip the 360 heads, go straight to magnums...either junkyard pieces or these from hughes
http://www.hughesengines.com/Index/produ...mp;partid=25702if you go stockers, use the hughes #1110 springs and their retainers anyway..
your '85 should be a roller block/cam. you'll need new magnum roller lifters (about $85 set) since the '85's don't have pushrod oiling provisions. for a heavy car like a dippy (I hotrodded a 5th ave) don't go too big on the cam. look for a roller cam in the [Email]218-224@.050[/Email] range, with about .340" lobe lift (nets approx. .540" valve lift).
edelbrock RPM air gap, and I'd probably look at the new demon thermoquad clones for street use, or an 800 cfm eddie AVS. run headers, and this should be a 425-450hp combo pretty easily. if you want fun, I'd use an iron case A body A833OD manual and 3.23's or 3.55's out back. should be a low, low 13/high 12 second car.
