Hey fellas. I bought a Cobra last week from the second owner, and he didn't have a clue as to what size the pullies are. I could see that they both are changed and not stock. I tracked dow nthe first owner and gave him a call. He has said that what's on it now is the Metco 10 rib pulley system, He had actually stated that he got it on here through a group buy back in the day... I did some searches, but found nothing. Please help... I'd like to pinpoint what pullies and boost I have finally. Thanks