Had it fitted and wow the car flys, as for idle its fine to be honest the mechanic who fitted it timed car by ear and to be honest i had my driver camed with a gti cam, and this runs much smoother
i fitted a Kent GS1H, Changed the cam followers and the cam belt + waterpump, had to get a dizzy from scrap yard last min as when timing it died, so rushed around on a sat afternoon to find new one which ant easy lol.
car idles between 1000-15000, i can take vid of car running so ppl can see how it idles with highlift cam if anyone intrested