The car is obviously capable of going faster, just that I suck as a driver, plain & simple. Yes it still has the balance shafts. The next potential owner can push the car to it's limits. When I pull the turbo & exhaust manifold off to fix the broken stud, I'm going to switch to a smaller back housing. I think I have an 8 or 10cm back housing somewhere. That will help with the slow spool.