If the worst bore is just .007" over stock bore size, you should be able to get some more time-miles out of it. Just don't get too crazy with the glaze breaking and if the ring grooves and piston tops and skirts look to be in decent shape, go for it. If you do put new rings in it, make sure you have a gap of 016" measuring at bottom of bore where the least amount of wear is. IIRC, the old shop manuals had around .007" for wear limit too. (440 4.320") i personnally drove a cava w/2.2 for 25k miles with one piston with .018" clearance, and I heard it rocking in there hot or cold, and did not use oil, ran strong.