I am envious, I have been looking for a Lite for a few years. Remember, don't start throwing parts away, when the package is in good tune, you can get some great numbers. Screw it up and it might go in the dumpster. I got GREAT mileage with my bone stock +150K Feather Duster years ago. Here is all I would do to get my baseline. Tires at max pressure, alignment on front end to spec, syn oil in rear, timing just at the max on dist and good state of tune, filters, plugs, etc. Good luck with your quest!
