Well, I now have the new bonnet from Saturn, my God that Spud guy knows what he is doing
Looks damn fine, in my opinion. I can say with certainty that it clears all the nasty sticky out bits on my DOHC / MT75 combo fitted with my modded manifold. It looks like it will clear a standard manifold, I am in the process of verifying that info. When I have done so I will measure my engine relative to some fixed points on the chassis so that other builders should find the process much easier.
As soon as I have found a couple of hours to get in the garage I will update this thread with the full SP.
Dave.