well im going to go with the 270 10.25mm i want a nice note aswell so its a must lol...ive also learned some new tricks in my build such as port matching my block and head to the head gasket which i havent done and also installing a head oil drain kit from spool imports this will now save me having to pull the engine out again... oh cant forget the 1mm restrictor and blocking the rear gallery off, so many secrets!