I don't want 570 HP, my suspension can't handle it, and it would cost too much to upgrade (the torque on that engine was 576). I am also considering resale; I think that someone would rather buy a car that has the original engine in it, than have to put it in....not that I intend on selling the car, but the way the economy is, you never know what is going to happen from day to day. The 400 engine that I was looking at needed most of the 'bulky' parts from my engine anyway (alternator, steering pump, pulley setup), so the 326 would take up less room, I just don't know if I want an engine laying around. If I lived in LA, I wouldn't have a problem having the extra engine, my wife could park her car in the driveway.