Wow, thanks guys
I would not know where to start with a CAD drawing so "Andy's big hump" sounds the most appealing option, despite it sounding a bit like a pervy game show
I intend to do some measurements at the weekend so I can get a better idea of what I need to achieve.
The DOHC is a big old lump, especially with an unmodified inlet.
Thanks a lot guys, Andy will ait to hear from you.
Best and all that,
Enoch