Here are some thoughts from discussions on other forums
I do like the silver and black because it has a good contrast


Others suggested black but my problem with black is that in makes the engine look very bland, because the plastic trim is also black. I like the contrast of silver and black better.
There a car with a black 1UZ and ITB's in the next workshop over so I went and took a photo of it's engine. It just looks like too much black and nothing to break it up.

Here is a pic online that I found with crinkle paint which looks better because it has some silver accents

If we are talking 4&R's then I could go something crazy and custom like this

but I'm not sure if I want add a third colour in to the engine bay.
