The AFR read out says lean, the BSFC says a little fat up high. Test,test and test some more until it goes slower or looses power, correct Maybe it needs a slightly bigger high speed bleeds I agree on a bigger CFM carb. to help eliminate the manifold vacuum increasing restricting the air flow into the motor
I agree!
Of course the customer will add a air cleaner and full exhaust and that will change things to so no reason to chase a couple HP onthe dyno and like most guys he will do a little tuning once it's in the car. Reliability and driveability are more important.
Just for example, a A/SA Max Wedge on our dyno will make 595 hp and run 10.20 at 3400lbs. So how fast would you think a 3600 lb 4 speed Road Runner would go ?
