Does anyone know(or can you point me in the direction of) what the specifications are for the 3.9L v6(LGD) camshaft? Its the 3.9L VVT v6 that came in a lot of GM vehicles. I'm also curious if anyone has deciphered the actual correlation between the camshaft and the tables in HPTuners ie. what the actual degrees of advance/retard are. Thanks alot for any help anyone can offer.