Factory old iron just can't compete ... ??

old new who cares , I had plenty of fun with my stroked 360/426 made 530hp 560tq in a 3200lb car it was plenty only put 7000 miles on it before I switched back to the 340 8 mpg with the 426 at $8.00 a gallon was a pain had to fill it up every day with the 340 fill it twice a week . Stroker could have made over 600 if I cut the hood to use a better intake and heads , 500 to 600 hp is fine for a stock block