I bought a set of cams from the States, but my plans changed towards ST170. These are Comp Cams Z281, #108200, to fit Zetec 2.0 Blacktop engines. Drop-in replacement with stock lifters and springs. For Silvertop, you'd need to convert to solid lifters. Anyone here interested?
290 GBP posted to UK.
Pics and specs:
https://imgur.com/a/dT6Y0