right ok..... this car will not drive properly without the crank pulley, its critical for not only good boost but a nice idle.....
now my idle is ROCK smooth, digitally smooth, no surging, idle fluctuation @ all!! Better than stock infact
your car will need a good 200 miles to adapt, DO a couple of redline pulls so the car can adapt to high rev work also, just 2-3 in this first few hundred miles, but try and gently use a wide range of revs so that ecu can see as many variations as possible, but be easy on her :-)
the s/c will quieten down, keep an eye on the fluid level, idle is key to a quiet blower, once you get your proper crank pulley on, it'll be SO much quieter :-) also the whistle you hear isnt from your BOV, its from the breather @ the top of the s/c, its vents and creates this noise a lowish revs
the crank pulley is a very nice piece of kit :-)
