Cheers mate, yea i know would have loved to have it flow tested but just couldn't find any one close plus im running out of time a bit. From all the research i did peak flow figures aren't really the be all and end all of a decent head. Haven't really changed anything too drastic inlet side, just slightly larger and smoother lol

My initial engine spec wont have changed very much. Same cam, turbo etc so i will do a dyno run and compare, if i make the same or more power at the same boost with the lower CR the head has been an improvement

Rob,