Unfortunately, the only advantage to this setup would be that you would have good street drivability. If you want to run 20 psi boost, you would need to build your engine for 20 psi boost, then it doesn't seem to make sense to limit yourself to about 300 WHp when you could have 450 WHp on the same build if you held the 20psi all the way to the redline. TitaniumTT has it figured out, he is using the stock twins sequentially to make good low end and high end.
The VGT is also a good option.
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers)
1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)
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