New dyno numbers!

[TowDawg]

I just spoke to Arrow and my engine shipped Friday heading back to me. I asked him about the dyno numbers and I can't wait to get it back in the car. It put down 546 hp and 578 ft/lbs! I had over 500 ft/lbs from 2500 RPM on. This is on a stock computer with open exhaust.
I know it's an engine dyno, but isn't that how the 500/500 of the stock engine is measured as well?

 

[KenH]

It is as long as they hooked up all of the the belt driven accessories and used the stock exhaust headers. Sounds strong in any case!

 

[TowDawg]

I'm not sure on all of the accessories, but the numbers are with the stock exhaust manifolds in place. I will get it on a dyno once I have it back in the car and see what I come out with. The torque number is what really blew me away.