Hi Simon Glad you like the ramblings! Your ideas will work well indeed, I did a mildly modified standard valve head, just seat and throat work with std size ports & a Newman 268 cam to go on a std GTI 1800. It was also fitted with a Jetex system and an aftermarket manifold but not a great one. That made 132hp with a broad power spread and excellent bottom end and mid range power...better than some 2ltrs I've seen. If the RP is a low comp engine with deep dish pistons I'd probably replace them with GTi versions to get a better starting point for the C.R, or indeed the block can be skimmed to raise them like in the articles here and the head skimmed to get the C.R right for the cam. I'd guess you'll use the digifant system from a MK2 GTi? I've just done a 2ltr 8v on Digifant that made a touch over 150hp so it can work ok, but there are compromises, though a tamer cam than used would help and still make around 140hp as an 1800 with a good spread. Let us know how you get along with it and/or contact me if you need any help Simon.