Tune up ?

I,m attempting to tune my 90 Lsc, and I need some advice. I'm not real familiar with electronic ignitions, so should I take the electronic ignition to AutoZone and have them check it out, ( do electronic ignitions wear out?), and if its good are there contacts on it that should be cleaned. it sits on top of the distributer. I'm also going to replace the PCV valve. How about the rotor should I replace it to? I dont think its been changed four about 35,000 miles. I will also replace the spark plug and wires any advice on what kind. Is there anything else I should check and replace if bad.
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Thanks so much John

wrong forum - this is for the Lincoln LS.

So what id the difference in ls and lsc. I know that ls stands for luxuary sport coupe. Are you telling me you cant help? Its a ford engine 5.0

right - the lincoln LS is the DEW98 platform shared with the Jag S-Type and the new Ford Thunderbird. The V8 platform uses the 3.9L 32v engine.

Your LSC is actually a Mark (VII, I believe). LSC, in your case is a trim/equipment level for that model Mark. In our case, LS is the model with some of the trim/equiment levels being called "Ultimate", "Sport", "Luxury", etc.

Mark VII LSC
LS Ultimate

It's confusing to everyone but LS owners.http://www.automotiveforums.com/vbulletin/images/smilies/screwy.gif