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Message: <blockquote data-quote="five0joe" data-source="post: 725253" data-attributes="member: 12911"><p>Doing a tune up on my 95 GT. Seems like I remember reading on another forum one time, that on these cars, you should not advance the timing due to the computer. Something to do with the way it controls timing, advancing would actually loose power not gain. Any truth to this? I am used to the older A9L, on my 93 I run 17 degrees spout out, no issues with 93 octane, and runs strong. New to the SN's, and just want to know what they like best, stock or advanced. I know other than stock 10 degrees, depends on combo, just want to know if there is any truth to the not advancing due to computer deal. Any help greatly appreciated! Joe</p></blockquote><p></p>