Please Troubleshoot: Detonation

[sepulchral]

I have a SR w/ stock injectors, walbro fuel pump, greddy r spec front mount, gt spec exhaust. When i adjust the boost the car will detonate at a higher rpms, car is fine on stock boost.

A few weeks ago my fuel pump fuse blew i replaced it and the pump's buzzing noise grew way louder. I don't know how that would effect it because stock boost runs fine. Car only detonates when boost is changed. Im using greddy profec b spec 2.

If anyone has any information on what might be the issue for this, please post any solutions/causes.

What i have on my mind now is Bad injectors or badly gapped plugs, bad fuel pump- those are the only things that i can think of.