Ignition time, is this a problem???

[2fast2furious]

hi friends,

I have a civic vti turbo with an setup

ID1000
Head: all supertech
engine: Wiseco pistons 81,5mm + Eagle rods 10.75:1 CR
head gasket: Cometic bore 0,30
Fuel: Ethanol E75

This is my map, but my car between 4500 - 5000 presents a problem as bunching a rotation.

WHAT could be, low ignition point?

My fear is to burn the head gasket

anybody can help me?

thanks