Ok i am going to do a full engine overhaul. I am getting different pistonsw to raise compression and getting webber thriple carbs(six-Pack) headers and K&N intake and getting large valves for my old E-88 and having it port and polished and port matching the intake manifold. May get a turbo exhaust, getting a cam the second grind in the Motorsports catalog and just rebuilding the engine to the best of my money's ability. What kind of horsepower can I expect to my back wheels after all that crap is done 170- 180? Can you thing of anything i missed to get more horsepower out of my old 240z? i am too cheap to buy a280zx engine or head but will use all the stuff i have around my garage. What else can i do to my engine to get the last drops of HP out of it?