Looks presicion is in the cards.. Suckiest part is I'm going to have to just tune it for below 400 even with the headroom as my clutch won't stand up to that... Have to get a opt 5.
Decided to get a new f6 motor from ford and service my head + a bit of a port tidy up, I know the fella that owns the cylinder head shop pretty well. Arp head bolts, oil pump and some other bits.