I can see why you'd be excited for a street car, but really, for a race car 500 hp is not that impressive. I run a GT-1 Vette with a 395 cu.in displacement, naturally aspirated, 12.8:1 compression, with 862 hp, per the dyno. Now, it does that at 8640 rpm, with a useable power developed between 6200 and 8000 rpm. Not exactly "streetable", but real fun at Sebring or Daytona. The GT-1 class is fun, but real expensive to run. By building an ITO car, I can keep racing, have fun, and hopefully spend a lot less money. 500 hp will have to do. The GT-1 car sis for sale. Interested???