I tend to agree Harry.
We spent around 80 hours on the head (GX) - on and off the flow bench and getting the shaping as good as poss - imagine the cost to a customer.
Engine is VERY carefully squared up and balanced etc with all the bells and whistles.
We run twin 45s and are bored and stroked to 1608cc. Cam could have been bigger, but we went for a circuit compromise with enough torque to pull out of low speed corners - it is a biggy anyway
Estimated power at the engine is around the 146 mark with an at wheels of around the 120hp.
Put into perspective the Cortinas with bigger valves etc are not getting much more out of a pushrod