SC300T

What is better for an NA-T setup? This is on a 92 OBDI 5spd SC300, stock injectors, stock compression plus two aux injectors in the intake manifold. T60-1 HiFi in the 400whp range.

I'm looking to tune closed loop also-- would like it richer at the onset of boost and leaner at cruise for fuel economy. I've got an Innovate LC-1 wideband, so I can feed the unit a wideband signal.

Is either box significantly better than the other?

Plusses and minuses? Looks to me like they both have the closed loop 02 adjust function that will manipulate my AFR under part throttle. It also looks like I can put in a target AFR under WOT and the box will add or subtract fuel to get to that point.

Any suggestions?

TIA