As above just wandering whats the best throttle body to use on custom inlet plenums.

Will be a zetec turbo engine ,Think I'm gunna go for the rover inlet bottom section as they line up nice with the zetec head and the ports are vertualy the same. I also make the conversion plates so the rover section bolts straight on the zetec head.. I think i'll just make a simple sqaure/rectangle box section plenum, also were can i get trumpets for the top half

current engine in my escort , planning for the new engine for my focus.


I am aiming fore the 300 bhp mark so will need a decent size T/B .

Any advice welcome.

Nath.