cant see why not, but tbh you dont need the kit if your going to fabricate your own carb box and boost pipes why not just buy a frst/erst manifold & turbo and pipe it up to your carbs.

The TT kits demand a premium due to the name and nature of component. If you have different carbs and can make boost pipes then as I say DIY it with a cvh turbo manifold and turbo running low boost (same as TT would run)

Cheers
Dan