That's a cracking figure out of a zetec , how accurate are rolling roads compared to engine dynos etc in terms of bhp , is it corrected etc and is that whp or flywheel hp . Either way that's doing some good numbers.
Mat do you know the full spec or is it all hush hush?
Just trying to get an idea of a happy medium between banging shit load of boost through the engine or having extra work done to gain hp in areas where others haven't bothered like larger valves , extra porting , custom cams etc etc.
If you can get 700 bhp from a head with standard valves with mild porting etc then that would be great. What I don't want is to shit myself every time I turn the key .
What head bolts do they use or are they standard Allen head 12.9 m12 bolts? , are they just drilled and retapped etc and are they using a thick clamping washer for extra clamping force . What head gasket are these lads running ?

Cheers Paul