poped the hood after driving it for about 20 minutes today, just to see how everything was doing.. i noticed 2 things that im concerned about 1. alittle smoke coming out of the breather cap at idle.. ive never had valve covers that needed a breather before, so i dont know if this is normal or not.. theres no smoke coming out of the tail pipes, so im hoping just this little bit out of the breather is ok.. 2. i have a noise, that i think may be a header leak, coming from my passengers side around the header.. now ive never had a header leak so im noit sure exactly what it sounds like, i just want to make sure its not a problem with the rockers.. is there any way to distinguish between the two noises.. thanks for all of the help guys