500hp & 600hp Bench Racing thread

And here's another example of size/spec/hp currently running in the '69RR.
589ci/mega block
-13 365cnc Indy heads
2.30/1.88 valves
440-2
Herbert .625/.625"-260/[email protected]
10:1CR, old 950HP DP
2.1/8" TTI step hdrs.