hey all i have a vn v6 bt-1 ex cop car it has a chip,computer,custom exhaust,k&n racing pod filter and recently i shaved the lil butterfly flap down in the throttle boddy about half a mm my problem is yesterday to prove my point and hava laugh i raced a diatsu charade and ford lazer (please dont ask silly i know) after whipping them both sideways twice with whel spin i decided i had enough so i parked it its then i relised a noise coming from my head (sounds like tappets but i could be wrong) i topped up the oil and added engine and tapped tune up cleaner it has softened the knocking noise a little but its still there when i drive it isnt really bad but when the stock auto box tried to change gears(its worn to the **** house and slips if i punch it hard) i can hear the noise clearly i had a look at it and made sure all oils were topped up my gearbox has a leak some where but the noise sounds like its coming from the head like tapped slap or something any help would be muchly appreciated this is my 3rd vn i dropped the bottom bearing in my first (no oil) and my second was ripped off and burnt 1 day after fitting big $$$ worth of mods i dont want to send this to the grave yet but i also dont wanna fork out 2grand to have a pecker head have a look at it thanks in advance