I bought these recently secondhand and havent yet used them myself.
But as I have just happened across a set of 285s instead I dont need these now.
Info I got from the seller when I bought them was:
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BP270 regrinds based on WILLIAMS cams not Valver ones
(more lift when you regrind the williams ones)
The lobes are in good condition
There is some radial scoring to the journals but the engine still ran fine and it didnt effect performance at all and that he only removed them to fit different cams as he was turboing the engine.
(so I guess the engine they were in previously had some shit in the oil if its got scores on the journals)
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I must confess I havent even taken them out of the packaging yet myself to look at, I'll get some pictures at the weekend though if anyone is interested, but just thought I would test the water if anyone wanted them first.
Just after my money back really, I paid 100 quid delivered, so am happy to do them for the same if anyone wants them.
They dont come with pulleys, which are advised when fitting (or get a small file into the location groove is the other option if you know what you are doing) to get the correct timing