[Ricky]

I am looking at fitting one of these reversion plates to my car primarily to stop fuel spitting onto the rear clam shell window during high throttle opening / track days which has been the primary use to date.

Reading Jims post, there appears that there could be both positive and negative performance benefits from fitment as well.

So the question is what would be an effective distance between the top of the ram tubes (trumpets) and the underside of the reversion plate? I can get a maximum of 25mm before the very back of the plate hits the clam shell window.

If fitted at say 20mm what sort of effect would I possibly end up with? (bearing in mind this is on a 347ci motor with 50mm individual TB's)