One of the biggest things I see on Deloreans, and I see this over and over again, is an incorrectly adjusted throttle cable and/or linkage. On many cars, when you push the gas peddle all the way to the floor, the throttle plates are only going maybe 70 to 80 % of the way open. Adjusting the cable or linkage so the plates go 100 % open is like gaining free HP. Normally tuning a car, weather it be adjusting the throttle linkage or changing the spark plugs and wires or installing a new air filter or other things like this, does not increase HP, it just restores the HP the engine was always capable of producing. Of course, if you're used to driving a car that is in a bad state of tune, then making these changes by tuning the car up will definitely give you increased performance. Marty [Non-text portions of this message have been removed]