Power Loss and Weird noise

[dls322]

Ok, had a question for everyone. Sometimes when I go WOT on the stang i hit a point where the RPM's feel like they bog, power goes flat, then it's followed by a "popping" sound (i'm pretty sure it's not a backfire, it sounds more like an air type pop and it seams to be coming from the front passengers side) After the pop, it then begins to build power. Any ideas? I've notice at times that the RPMS kinda bog once and a while.....especially at the track!
Thanks

 

[BlownFiveLiter]

Sounds like detonation to me, based on your description. I see in your sig that you have your timing advanced to 12° and are also running a hotter coil. What type of gas are you running as far as octane?

 

[dls322]

I have beeen running between 92 and 93 pump gas. Should bring my timing down?