Looks like I may have two choices in respect to the cylinder head going back on my engine. Both are being pressure tested tomorrow to see what the situation is, however I have a few options still:
1) Have my own cylinder head tidied up in the ports, valve faces cut at 3 angles, seats at 3, skimmed. Told this in itself will give a nice performance increase with the improved flow over the valves alongside the slightly raised compression ratio. Benefits are I know the head's history 100% and it is sound (£200).
2) Have the ported cylinder head fitted, likely with the same valve seat/face work as above. This does appeal in getting at least some value from the crap engine I bought, however the work is not perfect and I'm a perfectionist, though this head would probably give a better overall performance and economy increase vs option 1 (Likely £200 as well).
3) Get my cylinder head sent to Courtenay for their full gas flow/port work including valve face/seat recuts and also valve stem re-shape. They reckon on 10% torque/bhp across the whole rev range and a nice economy improvement too. Advantages are probably fairly perfect work vs the price at £465 + carriage either way so easily £500.
I'm in ways torn between 1 and 3 - 1 is an improvement, perfect, but not everything I'd like to do, though 3 is a fair bit more money...