the engine looks clean and slick with the white
i think black would be good because firstly white will get dirty quick aha and white and black match nicely
go for some crazy colours, i saw one that had each side of the engine bay a different colour, blue, green, pink and yellow iirc... with a bright engine tooyou have a nice engine so may aswell make it stand out, its not on show all the time anyway
Have a look at Lazy Lunatics rides thread. Its a shed load of pages, but he's had a few different colours in there! Dont need VHT for the bay though, just key the current paint, Basecoat, then lacquer.
bright yellow mate, will make the engine pop out at you, and itll be different. but its your car, its upto you. i thing what ever colour your going to have your coolant pipes