Trick Flow small block heads
I didn't dyno mine, but all I swapped were heads. Same cam and all that jazz.
CNC chinesium heads 4500ft DA - 11.86@112(usually around 110 with 5000+DA) w/ soft launch shifting at 6500rpm, timing at 36*
Trickflow Heads - 5800ft DA - 11.77@114 w/ soft launch shifting at 5500rpm (first test pass w/ heads) Timing at 32*
Besides my butt dyno.. the engine does run through the rpm much smoother, feels like there is no end till it taps the limiter at 7000rpm.
Without fine tuning these are working pretty decent.