Honestly I can't answer those questions.....
I thought I knew more than I actually do about the swap, I knew the "right" way to do it but I did not have the money to do it that way. All the LS swaps in Colorado's you will see have E40 ECM's and newer (05+ engines), here where I live it would have cost me an easy $8,000 just for the engine and accessories to make this work. I just ordered the manual valve body it should be here by friday.