Originally Posted by
bateyovhebburn
How's he " my precious Mr Norris "????
I'm stating what he told me when I took my saff to be mapped, he took my bleed valve off claiming it to be an unsafe way of controling boost and fitted an Amal valve instead.

And i'm stating you have taken it out of context or too literally, i've provided two examples of the top tuners using/recommending them and you can provide no technical reason to back up your statement of them being dangerous for your engine.
Norris may have said
your particular setup was
shonky, but anything can be poorly installed or setup.
I dont see any tuners jumping on here claiming they're dangerous for your engine
ps, see Stu's post