Depends on the header style, a 4-into-1 setup will be better for top end, but a Tri-y like the Doug Thorley headers will increase torque a bit.

Plano eh? Figgered you weren't anywhere near me out here in BFE <img src="/forums/images/graemlins/rolleyes.gif" alt="" />

'87 4-Runner--DD/wheeler, 4.3 swap coming soon
'89 Supra--E85 powered 2jz NA-T Swap, 533rwhp 497ft-lbs
'89 Festiva, turboed BP swap powered by megasquirt