440 Source Head Opinions?

man, I remember when a 350 hp small block was rip'n, and a 450 hp big block was a deal (long before a ton of these aftermarket heads/etc came along). Now, it's 600-700 hp or stay home. And soon, a 1000 hp will be the standard and if you only want a wimpy 700 hp, then go cheap .... LOL. Fast is fast till it's slow. I remember when a 12 second car on the street was a deal. Now with big turbos and new gen swaps, 9 seconds is the new 12 seconds on the street.