Trick Flow SBM Heads

extremely impressive. It should run 9’s easily unless the car is extra heavy
We figured my old W5 motor( when i had it) made an honest 640
It went 9.80’s at 135 weighing 3350. This should be very close, maybe faster If it weighs less.
Thanks! The chassis is still getting some work, so final weight is still up in the air. I think it will be lighter than that though. Maybe Sterling can shed more light on that.