naturally aspirated, non stroker, 60 over, 360, 500hp, is it possible?

I've got 4" stroke combos in E bodies that are 700lbs heavier, with less gear, less convertor, and regular radials running mid 12s and 109 on 87 octane. I've had pump high test 340s that came out at 480 hp based on mph and weight with hydraulic cams and ported factory iron. It's not hard, but you have to both know what to use, and how to put it all together. In theory, regardless of manifolding - you should be pretty deep in the 12s depending on the traction you can muster and your tuning. Remember - dyno testing on an engine dyno is seldom reality when it's in the chassis and running down the track.