So with this built, I slung it back in the car, got it running and up to Jim and Steve at Track and Road in Essex.
4 hours and 3 cups of cold tea later, this is where we ended up.
Dialling out a bit more ignition we got it up to 187.1 BHP and 149.5 Ft/lb of torque, I need to up the rev limit to 7400 rpm and we should see another few BHP as the power curve is still rising as the limiter comes in at 6800 rpm. I need to fit the ARP's I've got in the garage, I didn't fit these during the engine build as I wasn't sure on the chamfering, I now know what to do and will get onto it within the next week. Might see 193 BHP with a slightly higher limiter.
Just so no one points it out the green power figure on the screen is power at the wheels, with run down transmission losses calculated the RR said 187.1 BHP as shown on the graph, the pictures above and video were taken from an earlier run while we were still playing with the ignition advance a WOT.
So in summary, you want it done right, do it yourself, trust no one!!!!!