Yeah the right way for the North Star is inserts or the rebore and the head studs but IMO way to much effort for a older car. I bought a nice 03 Deviile at a auction that had about 30,000 on it $800 used the vent method and was a winner for me and sold me on the technique so I sought them out to flip.
Easy money!
CP has a tiger by the tail that LS is a hott street car power and at 3200 sweet!
Yeah my Caddy has 66K on it. 17 years old. I know how to check for this. Like I stated it has had all the repairs mentioned.