Very nice work, here's a price list of what I got quoted in the UK for my head work.
Here is the price and it sounds really good, but I just cannot afford to do this.
4 x Nucleus Hi-flow Lightweight inlet valves £120.00
4 x “ “ “ Dome Exhaust valves £120.00
8 x Nucleus race guides £160.00
8 x fit and diamond hone guides to match stems £078.00
4 x Existing exhaust seats reprofile 3 angle £060.00
4 x Hardened inlet seats fit, Blend to chamber o/d to suit oversize valve £180.00
4 x Inlet seats profile 5 angle to suit valves £040.00
Flow ports to suit valves, carbs and manifolds £260.00
Modify combustion chambers £040.00
Then underneath he has written:-
If you want exact replica of 100 + BHP job this involves welding the inlet ports and S wirlflow on inlets £190.00
Apparently he has already done this on a Bonneville and has dynoed of over 100 BHP at the rear wheel, sounds a little frightening to me but if you have the money this is the place to get your work done in the UK..
Cylinder Head Shop