[ezking]

The optimum rpm range for a gt is 2100-2400 rpms I believe. That drone is ur car lugging. Don't drive it like a sbc.

When u hit certain lvls of torque that noise goes away, but that's an indicator that u need to down shift or speed up.

Edit: oops u got a 3valve, not sure if this is true for them too.
Ill l2read nxt time.

Also ur car stops making power @ 5250, so don't shift at 6k, shift at 5500 and ull get more out of it