turbo stealth

hi all i have a s2 and its now come to the time where i think i need a set of tappets ,when i got it i was told it had a kent cam so ive just brought a set of anti pump lifters i just took my distributer off to check it was a kent and its got bmtw stamped on it does any one no what cam this is ,any help would be very helpfull.
cheers rob

turbo.jon

Rob try puting post in rs turbo section