I'm not Keith, and I'm sure he'll jump in but,...you know,....
for $16,995.00 you can get an all aluminum FE, carb to
oil pan, w/hyd. roller cam, 625 ftlb / 625-640 hp, dyno tested and tuned. That should be around 550 at the wheels, all motor, on pump gas, in a Cobra,.....
Is that close enough?