Thanks mate and thanks again for your help
You could still remove the cap on the coolant pipe under the manifold and push a little pipe on the T to bleed it if needs be ?
Maybe JHM left the pipe in place to warrant the price for the kit as you are paying for the connections and pipe as well as the caps and clips where it would only cost a few quid if you just needed the block off caps and clips like we have done ?
Ape PVC kit is a great idea and as you have said should make a bigger difference than the coolant modification but as they say every little helps !
I do love the fact these are fairly simple modification 's but will all help for the quest of more power to be achieved! The PVC Kit will also help with keeping that carbon away as well, an added bonus !!