no gain in power???????

[heno]

hey guys, i had a new fuel pump put into my r33 with a rising rate reg. i also had the boost increased to 13psi usuing a turbosmart single stage boost controller. now the problem that i have is before i had this done i had 178rwkw at 10psi since this has been done i now have the same. the car started to detonate so they retarded the timimg. yes the car pulls harder than it did, but still finishes with the same power at the rear wheels. can anyone tell me what hell is going on? on the dyno there is a sudden drop in the graph at 100kw then hesitates and takes off again for another 78kw. does anyone know what that hesitation is?

[cameron]

try turning the boost down.

sounds like its overboosting a little bit, change it to about 11psi