If you have a 3.29 transmission, its much easier to setup the top swap bin using the 02 impala file.
Swap in the L67 Good Fuel Spark timing table, PE settings, the injector constants, and you should be good to go. Make sure you dont try to use the 2bar map sensor.... You may see alot of extra KR, which is due to a bit different sensitivty, but I have been able to tune around it a bit with the PE vs Coolant temp table. Be careful with coolant temp PE, as if you go too low it will add alot of timing vs the AFR Spark table, which I suggest you zero out before you start if you have access to it (tiny tuner does).
