408 build and results.

Missing 15 hp isn’t to darn bad since you didn’t get the cam you wanted. Though I like the cam. Very nice for the street.

Did you try various spacers under the carb?
Try a bigger carb?
Port match the intake deeply ported up the runner?

I wouldn’t be unhappy about the results. Bummed that I could get exactly what I wanted for during the parts gathering I’d be.