Best Harness/PCM Option For 3800 and T56 Setup?

[Slipstream]

I am building a kit car using the Series 3 v6 3800 L32 from a 2007 Grand Prix GT with the supercharger and a T56 using the Malwood Adaptor.

I do not have the wiring harness or PCM for this build yet. When it comes to the L32/T56 configuration, are my only 2 options the v6 Firebird/Camaro setups (-98 for DBC and 99+ for DBW)? If not, what is the ideal PCM to use? Within an hours drive, I have access to several pick a part yards to find what I need.

Thanks

[CTX-SLPR]

My suggestion is to plan on ditching the L32 stuff and go back to an L67 for the controls side which will require a throttlebody, MAF, and maybe injector change (not experienced with how far you can take the stock returnless designed injectors). This gives you all of the physical and power improvements of the L32 without the much more complicated DBW and returnless fuel system. I believe the typical answer is 98-02 Monte Carlo or Lumina as the simplest 3800 implementations though you'll need the added stuff for the supercharger controls going from L36 to L67 (there used to be a harness for this but not sure anymore) I'm running effectively the same setup, though with a stand alone controlled 4L80E, on a 2000 GTP harness and ECM. In short I think you can get away with a Grand Prix GTP just fine but would avoid the Buick stuff and don't know about the Bonneville enough to say either way.