a dynojet, dynapack dynos read 10-16 % higher than a mustang dyno.
so for stock cams and head a banged up header 2.25" resonator and two mufflers its about right and around 11:1 CR its ok...
i got the tuner to burn me a chip with a 2 degree retard in vtec for my nitrous. so another 80hp on top it should be nice