[cleanspeed1]

Do a full tune up, a Seafoam decarbonizing ( pour through brake booster vacuum supply hose, follow directions on can and there are some youtube videos on the subject ), change the O2 sensors, check catalytic convertor for restriction and replace if necessary, change the air and fuel filters. In other words, get a good baseline first mechanically. Change over to synthetic lubricants. Get some Deep Creep and clean out the throttle body. Make sure the timing is within specification.