I run a conservative tune and have no knock issues. 770 O2s is about 11.3:1 according to the wideband at the dyno and car runs well and safe there. Stock everything short of wear items ie: timing chain etc. Car runs great and I want to run 30lbs of boost on the TE44 through stock unported heads. HP should be around 400 or under at 25psi. I want to try it and it looks like others push their cars harder, but what are the opinions on this? I've read the TE44 "sweet spot" is 28 lbs, so I want to use all it has if I can.