Once the vapour rubbish is sorted, the next major modification you need to do to the 90 given the lean angles of ironsides is fit the below.  One to each door should do the trick.

Sorry Sheldon,
                     I actually did think of stopping for a fraction of a second but it is hard to park a 23 Mtr long Tram in the middle of High St Westgath without creating attention or causing much aggro.

In regards to your Vapor Lock Std V6's tend to have this problem in very hot conditions upon restarting and I'm sure you have aggrivated the problem with your Surge Tank.

If you follow Colin's advice I'm sure you will fix the problem or at least minimise it.

By the way Sheldon I know we give you a Hard Time about Ironsides but congratulations for your fine drive at the 6 Hr.

Considering the soft suspension and the amount of Body Roll on that Beast it was a fine Drive.

Rob Dale