Header Info Please

[sleeper1.6]

I Have A B16a Gen2 In A 92 Civic. I Have A Custom Full Length Exhaust (strait Pipe) That Goes Into A Dc Sports Axle Back. I Have Heard That To Much Air Flow Can Be Bad So Do I Need A 4-2-1 Header Or Can I Get A 4-1 Header Without It Hurting Me.

 

[Citizen_Insane]

The typical addage goes something like this:
4-1 for top end power,
4-2-1 for mid range power.

It depends on where you want to put your powerband. Is this car for drag racing? Street racing? AutoX?