If I had it to do all over again I would be. Let me ask you this, when you were running your 408 before it took a dump would you ever dream of trying to make a little ol' 4.8L mean by putting a turbo to it and pushing it to the limits?
I know DBRODS' LS2 is aluminum and he's faster than I am with less cubes and less nitrous. 400 lbs makes you about .4 seconds faster.