Motor: LS1 with 317 heads and triple 12 cam.
I building an twin turbo set-up for my 67 chevy truck and need a little help picking some turbos. I'm looking for a turbo that will spool quick. The first choice turbo would work but afraid the big A/R housing is going to hurt spooling. The second choice is bigger turbo over all but if I go with the .68 A/R would hurt me up top. if go with .81 house should spool ok. The last turbo is the best choice but out of budget. What do you guys think.

Here are the two turbos picked so far.

1. BorgWarner Airwerks S200SX-56, with 1.22 A/R Twin Scroll Turbine Housing
Compressor: 56mm inducer / 69.6mm exducer,
Turbine: 69.6mm inducer / 61.5mm exducer.

2. Magnum Performance 60-1 / P-Trim .68A/R or .81 A/R


Dream turbo but budget can't take it.
Borg Warner Air Werks S200-56 / S256 Turbo .86 A/R
::Compressor:: (cold side)
- Wheel: 56mm Inducer / 80mm Exducer
::Turbine:: (hot side)
- Wheel: 74.1mm Inducer / 65mm Exducer

Thanks
Guys