I'm now thinking of welding up the opposite side to the spark plug hole to get some quench then send it off for CCing and give some relief around the valves to drop the comp abut to keep it around 10.5.1
While I'm at it here's some pics of the twin carb manifold I've made for this motor!
It not finished yet, need to join the 2 manifolds and make a couple of threads for the linkages and vacuum line for the brakes.
Killa I'm happy with it!