ok. so now i'm at the time in my sig. and i wan't a 12 99
before i go for any tuning. do you think a good stall convertor and aluminum drive shaft will get me there? here is a list of my mods.

slp cold air, bbk twin 52tb, ported and siamesed plenum, as&m semi siamesed runners, tpis bigmouth manifold,
afpr@52psi, walbro in tank pump, stock injectors, heddman long tubes, true duals with h-pipe, electric waterpump, a/c smog delete, p/s delete, accell 300+ ignition, msd billit dizzy
& wires. ssm weld in sfc and liftbars.

 

Looks like the engine is responding pretty good to the bolt-ons and suspension you have.

A good quality stall converter should get you .2-.3 if you can keep the tires from going up in smoke.

Unless your DS has issues, spend the money on the PROM burning stuff ro more suspension mods instead, most likely there's more to be gained with tuning/suspension than an aluminum driveshaft.