If I were you I would rebuild it. It doesn't take that long. I would put new bearings and seals, new cam, redo the heads with new springs/valves, lifters, rods, maybe even put new pistons and rings. Its all pretty cheap for a 350. Summit sells some great kits for good prices. Get the cone shaped filter for the TBI, use a spacer, get a engine dress up kit and you got your self some power and good looks. You could do a decent job for under 1 grand.