The Proof
Don't you hate it when people quote BHP instead of WHP? Me too ;-)
Anyway, the Grey Ghost made 335whp & 330ft/lbs @ 26 psi. At 15% losses, that's 394bhp.
The story:
I was randomly invited to a local Audi dyno day - they didn't have enough people to get the group discount. So I hopped in my...