Will free flow air box help out a Gen I with full exhaust?

[Sniper]

If I changed out my stock air box for a free flow one, will this increase the hp/torque at all? Will it hurt bottom end and help top end or help both? I've got headers, hi-flo cats, race mufflers, smooth tubes, and air filters.

 

[joe117]

It won't do anything you will notice, up or down.