I converted my P6 to Hotwire and found that the plenum top did touch the bonnet soundproofing. I placed a piece of gaffa tape sticky side up on the front of the plenum, then carefully closed the bonnet - when I opened the bonnet it was stuck to the soundproofing.
I dropped into a local engine shop and had them skin 6mm (1/4" to us some us ) off the jointing face (can't remember whether it was the upper or lower bit) but it does now clear ok, the gaffa tape stays on the plenum.
I dropped into a local engine shop and had them skin 6mm (1/4" to us some us ) off the jointing face (can't remember whether it was the upper or lower bit) but it does now clear ok, the gaffa tape stays on the plenum.